单选题：HIV infections are most severe in

题目内容：

HIV infections are most severe in A． sub-Saharan Afric
B． West Afric
C． North Afric
D． South Afric

参考答案：

答案解析：

According to the passage, a good student in college must als

According to the passage, a good student in college must also__________． A． know

分类：专四题型：单选题

分类：专四题型：单选题

Which of the following is NOT the consequence of lack of sleep?A． People tend to

分类：专四题型：单选题

根据听到的材料，回答题At the beginning of the conversation, what does the man ask the woman

分类：专四题型：单选题

It is said that John＇s two daughters or his wife _________to the city where he h

分类：专四题型：单选题