1961年通过的第一个保护植物新品种国际公约是（）.A.wTo B.upov C.u

用所给单词的正确形式填空（共10小题，每小题1分，满分10分）

小题1:At the same time we are taking measures to _____________ our natural resources.

小题2:The factory pours a lot of waste into the river and now the _______water is not fit to drink.

小题3:They two have been _____________ about the problem for about half an hour, but neither is willing to give in.

小题4:Some local families will provide ___________ for the exchange students.

小题5:The hurricane was really _______________.Many people were scared.

小题6:Considering there are many people in developing countries still don’t have enough to eat and no place to live in, many countries agree to work togehter to reduce ______________.

小题7:Honey, take your coat with you. Last night it snowed heavily and it might be ______________ cold today.

小题8:Do you know who ____________________ the computer?

小题9:The Japanese hold the view that the types of blood are related to people’s characters, so they take them ________.

小题10:With many forests __________ , animals have lost a lot of inhabitants. 

（1）用高锰酸钾制取并收集氧气，应选用上图中的 _________ 装置． （填代号，下同）

（2）制取并收集少量的二氧化碳，应选用上图中的 _________ 装置．

（3）为了得到较多的二氧化碳气体，甲、乙两个化学兴趣小组分别设计了如下图所示的E，F装置．你认为可行的是 _________ 装置．另一装置不合理的原因是 _________ ．

有关单克隆抗体的特点描述，应除外（）

A.理化性质高度均一

B.特异性强

C.纯度高

D.亲和力高

E.能无限制增殖

国际商品协定按照关注的重点不同分为（）

A.带有经济条款的国际商品协定

B.带有政治条款的国际商品协定

C.国际商品管理协定

D.发展型国际商品协定

E.创新型国际商品协定

箍筋弯钩的弯曲直径应大于被箍主钢筋的直径，且HPB300钢筋不得小于钢筋直径的（）倍。

A.2

B.2.5

C.3

D.3.5