选择题：That matter is so _______ that it must not be disc

题目内容：

That matter is so _______ that it must not be discussed outside this office. （分数：1 分）
A. confidential
B. private
C. confident
D. mysterious

参考答案：

The travel company had ________ three aircraft for

The travel company had ________ three aircraft for their holiday flights. （分数：1

He was so angry that he just couldnt ________ from telling them what he thought.

______　is known to all, too much stress can cause mental disease. （分数：1 分） A. Wh

7、某温度下反应: H2(g)+ Br(g) = 2HBr(g) K.=4x10~HBr(g)= H:(g)+ Br:(g)2 的K:是( )则反应(C )