全部题库 / 综合类 / 试题详情

单选题综合类

2016-02-18

Data from Voyager II have presented astronomers with a puzzle about why our outermost planet exists.

A．problem

B．mystery

C．question

D．point

查看答案及解析进入在线模考

参考答案

B

答案解析

暂无解析

你可能感兴趣的试题

1 He rolled up his trouser leg to exhibit his wounded knee.

A．spread

B．open

C．show

D．examine

查看解析在线模考

2 Why can't you stop your eternal complaining!

A．everlasting

B．long

C．monotonous

D．lengthy

查看解析在线模考

3 The Constitution's vague nature has given it the flexibility to be adapted when circumstances change.

A．imprecise

B．concise

C．unpolished

D．elementary

查看解析在线模考