以下不属于电子交易常用的支付方式的有()。
A、支付系统无安全措施的模型
B、通过第三方经纪人支付
C、数字现金支付
D、SSL模型
A、支付系统无安全措施的模型
B、通过第三方经纪人支付
C、数字现金支付
D、SSL模型
B.加密的电子支票更易于流通,买卖双方的银行只要用公共密钥认证确认支票即可,数字签名也可以被自动验证
C.电子支票主要应用于小额支付,主要适用于B2C模式的网上支付
D.电子支票技术将公共网络连入金融支付和金融清算网络
B.加密的电子支票更易于流通,买卖双方的银行只要用公共密钥认证确认支票即可,数字签名也可以被自动验证
C.电子支票主要应用于小额支付,主要适用于B2C模式的网上支付
D.电子支票技术将公共网络连入金融支付和金融清算网络
44 its economy continues to recover, the US is increasingly becoming a nation of part-timers and temporary workers. This " 45 " work force is the most important 46 in American business today, and it is 47 changing the relationship between people and their jobs. The phenomenon provides a way for companies to remain globally competitive 48 avoiding market cycles and the growing burdens 49 by employment rules, healthcare costs and pension plans. For workers it can mean an end to the security, benefits and sense of 50 that came from being a loyal employee.
41. [A] swarm [B] stride [C] separate [D] slip
42. [A] For [B] Because [C] As [D] Since
43. [A] from [B] in [C] on [D] by
44. [A] Even though [B] Now that [C] If only [D] Provided that
45. [A] durable [B] disposable [C] available [D] transferable
46. [A] approach [B] flow [C] fashion [D] trend
47. [A] instantly [B] reversely [C] fundamentally [D] sufficiently
48. [A] but [B] while [C] and [D] whereas
49. [A] imposed [B] restricted [C] illustrated [D] confined
50. [A] excitement [B] conviction [C] enthusiasm [D] importance
B.老年人的健康评估会耗时较长
C.在对老年人口腔进行健康评估时应取下义齿
D.应注意获取客观资料
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