问题
单项选择题 A1/A2型题
复合PSA半衰期约()。
A.1天
B.7天
C.12天
D.2~3天
E.10天
答案
参考答案:D
复合PSA半衰期约()。
A.1天
B.7天
C.12天
D.2~3天
E.10天
参考答案:D
根据对话内容及方框中所给的句子补全对话,其中有一项是多余的。 | |
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A: I'm hungry, Amy. B: So am I. 1 _ A: Yeah. Let's go to tie Rockin' Restaurant. I love their hamburgers. B: Oh, Tina. 2 A: Why? The food there is great, isn't it? B: 3_ I just don't like the atmosphere (氛围). Loud music makes me tense (紧张的). A: OK. 4 _ Amy? B: Let's go to the Blue Lagoon. Soft music makes me relaxed. A.: Not for me. ___5___ |