问题
单项选择题
对莫能菌素的有关描述,错误的是()
A.可用于预防鸡球虫病及肉牛的促生长剂
B.不可与泰乐菌素、泰妙菌素灵、竹桃霉素等合用,否则有中毒危险
C.作用峰期是在球虫生活周期的最初2d
D.肉鸡及产蛋鸡均可应用
E.马属动物禁用
答案
参考答案:D
对莫能菌素的有关描述,错误的是()
A.可用于预防鸡球虫病及肉牛的促生长剂
B.不可与泰乐菌素、泰妙菌素灵、竹桃霉素等合用,否则有中毒危险
C.作用峰期是在球虫生活周期的最初2d
D.肉鸡及产蛋鸡均可应用
E.马属动物禁用
参考答案:D
在方框中选择适当的句子补全对话。 | |
A: Hello, Max. How are you? B: Fine, thanks. A: 1 .You look pale (苍白 ) and tired. Is anything wrong? B: Well, yes, perhaps you can give me some advice. A: Of course, if I can. B: Well, I can't sleep at night. 2 . A: Oh, dear! That's terrible! No wonder you look so sleepy and tired. If I were you, 3 . B: Yes. Every night I go to the playground and run. But still I can't fall asleep. A: I think you can drink a cup of milk before you go to bed. 4 . B: I'll try it tonight. A: And you should relax a while and 5 Maybe you can go out for a holiday. B: That sounds nice. Thank you.
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