You know that a strand of template DNA has the following sequence: 5’-ATGGTGCCGGCCTGAAGTCA
A、3’-TACCACGGCCGGACTTCAGT-5’
B、3’-TAGGACCCGGGGACTTCAGT-5’
C、3’-ATGGTGCCGGCCTGAAGTCA-5’
D、3’-GAGGCACGGCCGGTCAACAGA-5’
A、3’-TACCACGGCCGGACTTCAGT-5’
B、3’-TAGGACCCGGGGACTTCAGT-5’
C、3’-ATGGTGCCGGCCTGAAGTCA-5’
D、3’-GAGGCACGGCCGGTCAACAGA-5’
What we know from the passage is that Mrs. Manstey was ______.
A.a lonely old woman
B.a strange and mad old woman
C.a sociable old woman
D.a respected and pleasant old woman
A.towing bridle
B.main weather cover
C.external lifelines
D.righting stra
听力原文:M: Excuse me, can you tell me how to get to the city library?
W: Sorry, I'm a stranger here myself. Why don't you ask the policeman over there, near the bookstore?
Q: What did the woman suggest to the man?
(14)
A.Buying a map.
B.Asking the store manager.
C.Making a phone call.
D.Asking the policeman.
在Shell变量引用操作符可实现字符串替换其中()用来测试,如果变量stra存在,则返回为变量stra的值,否则输出为word,并退出当前脚本程序
A.${stra-word}
B.${stra=word}
C.${stra:+word}
D.${stra:?word}
A、When you know a thing, to hold that you know it. When you do not know a thing, to allow that you do not know it. This is knowledge.
B、When you know a thing, to recognize that you know it, and when you do not know a thing, to recognize that you do not know it. That is knowledge.
C、If you know it, say you know. If you don’t know it, say you don’t. That is knowledge.
D、When you know a thing, say that you know it; when you do not know a thing, say that you do not know it. It is wise doing so.
Thinking that you know ______ in fact you don't is not a good idea.
A.what
B.that
C.when
D.which
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