1、【题目】Both sugar and salt can ______in water.

选项：

A.desert

B.absorb

C.dissolve

D.involve

答案：

C

解析：

暂无解析

1、【题目】When a spacecraft travels, one of the major problems is reentry into the Earth ’s _______.

选项：

A.surface

B.atmosphere

C.attitude

D.bent

答案：

B

解析：

暂无解析

1、【题目】Pine trees are usually believed to _______ cold weather.

选项：

A.guard

B.accomplish

C.roar

D.endure

答案：

D

解析：

暂无解析

1、【题目】We can not _______ all the magazines together.

选项：

A.route

B.draw

C.thread

D.bind

答案：

D

解析：

暂无解析

1、【题目】Whenaspacecrafttravels,oneofthemajorproblemsisreentryintotheEarth’s_______.

选项：

A.surface

B.atmosphere

C.attitude

D.bent

答案：

解析：

1、【题目】Sometimes it is very difficult to _______ some of the English words. Even the native speaker can not help.

选项：

A.decrease

B.create

C.define

D.delight

答案：

C

解析：

暂无解析

1、【题目】It is not ---_______ for me to return all the books to the library now because I still need some of them for my research.

选项：

A.continuous

B.difficult

C.convenient

D.sufficient

答案：

C

解析：

暂无解析

1、【题目】Wecannottrusthimanymorebecauseheoften________hisduty.

选项：

A.owes

B.spoils

C.deserts

D.neglects

答案：

解析：

1、【题目】The_______workcontinuedformorethanaweekbuttherewasstillnosignofthemissingboy.

选项：

A.research

B.rescue

C.vessel

D.vast

答案：

解析：

1、【题目】IntheUnitedStates,theforeignpolicyisdecidedbythe________government,notbyeachstate.

选项：

A.federal

B.figure

C.scientific

D.service

答案：

解析：