A.becauseB.unlessC.thoughD.until

People invest money in this company ______ they believe it will make profits.

A．though

B．because

C．unless

D．until

O2O模式与B2C模式的区别在于( )。

A、O2O模式是消费者在线上购买商品与服务后，必需去线下享受服务

B、O2O模式允许消费者线下付款

C、B2C模式需要消费者到商家取货

D、O2O的允许商家没有线下实体店

B2C电子商务网站的企业类型不包括()。

A、经营离线商店的零售商

B、商品制造商

C、工业原材料加工企业

D、网络交易服务公司

C2C平台盈利模式有()。

A、交易提成

B、广告收入

C、首页黄金铺位推荐费

D、网站提供增值服务

“故人西辞黄鹤楼,烟花三月下扬州”中的“烟花”指什么?()

A梨花

B雪花

C春景

D雾

In the last paragraph, the expression".., patients are on their own" most probably means [A] patients are alone when they are in hospital. [B] patients will try their luck on their doctors' health. [C] patients will have some problems related to them, rather than other people. [D] patients will make their decisions for themselves.

Mitt Romney is mentioned in the text so as to______.

A．evidence the cause for the disappointment of the international computer makers in the goal of OLPC

B．illustrate good news for the world's poor

C．appeal the world's computer manufacturers

D．analyse the psychological reaction to the cheap trick advanced by OLPC

The author wrote the passage in order to

A．call for cooperation of the whole world.

B．inform. the readers of the fact that we are facing energy crisis.

C．recommend a new life style.

D．call for devotion to the nature and our future generation.

The example of "zips" reflects______.

A．if possible, imports will be replaced by the local products

B．some products can't be produced without imported components

C．the people try to find a way m produce the local materials

D．a small lack leads to a big loss