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【判断题】
色氨酸突变株(trp-)表示该菌本身不能合成色氨酸,因此不能在基本培养基上生长。
A.
正确
B.
错误
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【判断题】对于老年人治疗杓型高血压应在早晨服用长效降压药
A.
正确
B.
错误
【简答题】Victor’s hobby was collecting stamps. He had stamps from many countries, like England, Canada and China. On his birthday, can you guess what people gave him? That’s right---stamps. Victor’s favourite ...
【简答题】Matt's hobby was collecting stamps. He had stamps from many countries, like America, Egypt and China. On his birthday, can you guess what people gave him? That's right——stamps. Matt's favorite stamps ...
【简答题】Victor’s hobby was collecting stamps. He had stamps from many countries,like England,Canada and China. Can you guess what people gave him as gifts? That’s right—stamps. Victor’s favorite stamps came f...
【简答题】A.He saves money to collect stamps. B.He often travels to other countries to collect stamps. C.He is fond of stamp collecting. D.He has collected a lot of stamps.
【简答题】根据首字母填空。 Ben's hobby is (1)c____ stamps.  He has (2)m____ beautiful (3)C____ stamps. They are (4)s____ stamps and (5)f____ stamps. Mike (6)l____ the ship stamp, because it's very interesting. Yang Lin...
【单选题】What kind of stamps does he collect?
A.
Rubber stamps
B.
Postage stamps.
C.
Signature stamps
D.
Clear stamps
【简答题】根据句意及首字母填空。 1. He likes collecting stamps, and I like collecting stamps, too. So we have a c_____ hobby. 2. The f_____    between us is very deep. 3. The old man likes telling stories.  His funny stor...
【简答题】阅读理解。 Victor's hobby was collecting stamps. He had stamps from many countries, like England, Canada and China. On his birthday, can you guess what people gave him? That's right---stamps. Victor's favo...
【简答题】Victor’s hobby was collecting stamps. He had stamps from many countries, like England, Canada and China. On his birthday, can you guess what people gave him? That’s right—stamps. Victor’s favorite sta...
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