It’s high time they ________ to reduce t

题型:选择题

问题:

It’s high time they ________ to reduce the cost of production.

A.take measures

B.took measuring

C.should take measuring

D.took measures

考点:动词短语动词
题型:选择题

符合致病性大肠杆菌肠炎特点的有()

A.为蛋花汤样便

B.大便有腥臭味

C.大便常混有黏液

D.秋季为高发季节

E.常有脱水、酸中毒

题型:选择题

炎症介质的主要作用是()

A.局部氢离子浓度增高

B.组织分解代谢增强

C.组织间液渗透压增高

D.细胞酶系统障碍

E.血管扩张通透性增加

题型:选择题

________it have been the failure to pick up directions from the ground control that caused the air crash?[ ]

A.Must  

B.Could  

C.Would  

D.Should

题型:选择题

简述国际金融市场的概念及其特点。

题型:选择题

TD-SCDMA系统的缺点?

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