Pancreatic juice is very acidic.

A、pepsin

B、bile

C、small intestinal juice

D、pancreatic juice

A、inhibits the secretions of bile and pancreatic juice

B、activates the pepsinogen

C、kills bacteria

D、promote the absorption of the ferrous ion and calcium

A、decreases the secretion of gastic juice

B、increases the secretion of pancreatic juice and bile

C、increases the activities of enzymes in the small intestine

D、increases gastic motility

A、activates the pepsinogen

B、kills bacteria

C、inhibits the secretions of bile and pancreatic juice

D、promote the absorption of the ferrous ion and calcium

A、increases the activities of enzymes in the small intestine

B、decreases the secretion of gastic juice

C、increases gastic motility

D、increases the secretion of pancreatic juice and bile

ed; without others we would soon die. Tiny amounts of some hormones can modify our moods and our action, our inclination to eat or drink, our aggressiveness or submissiveness, and our reproductive and parental behavior. And hormones do more than influence adult behavior; early in life they help to determine the development of bodily form. and may even determine an individual's behavioral capacities. Later in life the changing outputs of some endocrine glands and the body's changing sensitivity to some hormones are essential aspects of the phenomena of aging.

Communication within the body and the consequent integration of behavior. were considered the exclusive province of the nervous system up to the beginning of the present century. The emergence of endocrinology as a separate discipline can probable be traced to the experiments of Bayliss and Starling on the hormone secretion. This substance is secreted from cells in the intestinal walls when food enters the stomach; it travels through the bloodstream and stimulates the pancreas to liberate pancreatic juice, which aids in digestion. By showing that special cells secrete chemical agents that are conveyed by the bloodstream and regulate distant target organs or tissues, Bayliss and Starling demonstrated that chemical integration can occur without participation of the nervous system.

The term "hormone" was first used with reference to secretion. Starling derived the term from the Greek hormone, meaning "to excited or set in motion." The term "endocrine" was introduced shortly thereafter, "Endocrine" is used to refer to glands that secrete products into the bloodstream. The term "endocrine" contrasts with "exocrine" which is applied to glands that secrete their products through ducts to the site of action. Examples of exocrine glands are the tear glands, the sweat glands, and the pancreas, which secretes pancreatic juice through a duct into intestine. Exocrine glands are also called duct glands, while endocrine glands are called ductless.

What is the author's main purpose in the passage？

A．To explain the specific functions of various hormones.

B．To provide general information about hormones.

C．To explain how the term "hormone" evolved.

D．To report on experiments in endocrinology.

ve would be seriously impaired; without others we would soon die. Tiny amounts of some hormones can modify our moods and our actions, our inclination to eat or drink, our aggressiveness or submissiveness (顺从), and our reproductive and parental behavior. And hormones do more than influence adult behavior; early in life they help to determine the development of bodily form. and may even determine an individuals behavioral capacities. Later in life the changing outputs of some endocrine (内分泌) glands (腺体) and the bodys changing sensitivity to some hormones are essential aspects of the phenomena of aging. Communication within the body and the consequent integration of behavior. were considered the exclusive province of the nervous system up to the beginning of the present century. The emergence of endocrinology (内分泌学) as a separate discipline can probably be traced to the experiments of Bayliss and Starling on the hormones secreting. This substance is secreted from cells in the intestinal (肠的 ) walls when food enters the stomach; it travels through the bloodstream and stimulates the pancreas (胰 ) to liberate pancreatic juice, which aids in digestion. By showing that special cells secret chemical agents that are conveyed by the bloodstream and regulate distant target organs or tissues, Bayliss and Starling demonstrated that chemical integration can occur without participation of the nervous system. The term "hormone" was first used with reference to secreting. Starling derived the word from the Greek hormone, meaning "to excite or set in motion". The term "endocrine" was introduced shortly thereafter. "Endocrine" is used to refer to glands that secrete products into the bloodstream. The term "endocrine" contrasts with "exocrine (外分泌)", which is applied to glands that secrete their products through ducts (导管) to the site of action. Examples of exocrine glands are the tear glands, the sweat glands, and the pancreas, which secretes pancreatic juice through a duct into the intestine. Exocrine glands are also called duct glands, while endocrine glands are called ductless glands. The authors main purpose in this passage is to__________.

A.explain the specific functions

B.provide general information about hormones

C.explain how the term "hormone" evolved

D.report on experiments in endocrinology

A、effects of sunitinib malate on pancreatic neuroendocrine tumors

B、sunitinib malate for the treatment of pancreatic neuroendocrine tumors

C、relationship between sunitinib malate and pancreatic neuroendocrine tumors

D、/