AIDS患者的T细胞亚群检测一般会出现（） A.CD4↓，CD4/CD8↓ B.CD_爱下问搜题

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问题单项选择题

AIDS患者的T细胞亚群检测一般会出现（）

A.CD4↓，CD4/CD8↓

B.CD8↓，CD4/CD8↑

C.CD4↑，CD4/CD8↑

D.CD8↑，CD4/CD8↓

E.CD3↑，CD4/CD8↑

答案

参考答案：A

选择题

Tom drank up the whole bottle of milk, _____even a drop to his little brother.

A．not leave

B．leaving

C．not leaving

D．not to leave

补全对话，情景问答

从方框中选择恰当的选项完成下列对话，其中有两个多余选项。

A. What do you want to see first?
B. Why do you like them?
C. Where are they?
D. Do you like dolphins?
E. What do you like?
F. What are they?
G. Why do you want to see them first?

A: Many new animals are in the zoo. Do you know?
B: Oh? ______1_______
A: Pandas, lions, monkeys, giraffes and dolphins.
B: Let's go and see them.
A: OK. ______2_______
B: I want to see pandas first.
A: ______3______
B: Because they are very cute. ________4______
A: I like dolphins.
B: _______5________
A: Because they are clever and cute.