题目内容

请听下面的五段对话,用括号中的单词补全句子中的空格。( delightful/ finish/ fishing/ convince/ pity/ movies/ going/ unfortunately)B: Hi, Cherry. Glad to see you again.A: How’re things(1)?B: The same as ever.2. A: Do you have time this afternoon?B: Yes.A: How about going to the(2)?B: I’d like nothing better.3. A: How do you spend this weekend?B: I haven’t any idea.A: Let’s go(3).B: That sounds good.4. A: Are you busy these days?B: A little bit.A: We’re planning to have a party, would you care to join us?B: Unfortunately, I have to(4)my writing assignment.But thanks anyway.5. A: Why don’t you join us for the picnic this weekend?B: I’ve an appointment with Professor Smith.A: What a(5)!B: Thank you for inviting me all the same.

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请再听对话1(p31),并且判断下列句子分别是哪个人说的。1. I can’t survive without my girlfriend.2. Without friendship, I can’t think how I live in the world.3. I think the most important to me at this point in my life isfamily.A. TomB. LindaC. Jack

下列哪一种药物临床使用时达到有效血清浓度则可杀灭敏感细菌

A. 氯霉素
B. 庆大霉素
C. 四环素
D. 甲氧苄啶
E. 红霉素

对抗菌药作用机制的叙述不正确的是

A. 抗叶酸代谢
B. 影响细菌胞浆膜的通透性
C. 抑制细菌细胞壁的合成
D. 吞噬细菌
E. 抑制蛋白质合成

治疗指数的表达方法及其意义

A. ED50与LD50的比值,比值越大越安全
B. LD50与ED50的比值,比值越大越安全
C. LD50与ED50的差值,差值越大越安全
D. ED50与LD50的比值,比值越小越安全
E.LD50与ED50的差值,差值越小越安全

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