皮皮学，免费搜题
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【多选题】
人工培养真菌常用的培养基有( ) 。A.
营养琼脂
B.
葡萄糖琼脂
C.
马铃薯葡萄糖琼脂
D.
蛋白胨水
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举一反三
【单选题】You and I could hardly understand, ________?
A.
could we
B.
couldn’t you
C.
couldn’t we
D.
could I
【简答题】Dr. Martinez put on a false smile (假笑) as she entered Janet Eslin’s hospital room. She couldn’t let Janet see that she was worried. Yet she had been searching for the cause of Janet’s illness and hadn...
【单选题】In our English class today, I couldn't answer the questions and my classmate Rathy couldn't _____. [ ]
A.
neither
B.
too
C.
also
D.
either
【单选题】听力原文：W: Did you prepare for the exam? M: I couldn't. I lent my notes to Jack. Q: What happened to the man? (10)
A.
He left his notes in classroom.
B.
He couldn't write his notes.
C.
He had an exam.
D.
A classmate borrowed his notes
【简答题】Janet: I couldn’t have done it without you. Joe: Nonsense. You’re ________________.
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