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【多选题】
生物反应过程的特点( ) 细胞培养过程A.
具有生物活性
B.
常温常压
C.
利用可再生资源
D.
污染少，危害程度小
E.
设备简单，能耗小
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【单选题】_____ Sam _____ still by my side to see this with his own eyes! [ ]
A.
Only if; was
B.
Only if; were
C.
If only; were
D.
If only; is
【简答题】阅读理解 Sam and Joe were astronauts. There was once a very erous trip and the more experienced astronauts knew there was only a small chance of coming back alive (活着). Sam and Joe, however, thought i...
【简答题】什么是思维导图?常用的思维导图软件是哪些?
【简答题】什么是思维导图?常用的思维导图软件是哪些?
【简答题】阅读理解。 Sam and Joe were astronauts. There was once a very erous trip and the more experienced astronauts knew there was only a small chance of coming back alive. Sam and Joe, however, thought it wo...
【单选题】Sam and Joe were astronauts(宇航员). There was once a very dangerous trip and the more experienced astronauts knew there was only a small chance of coming back alive. Sam and Joe, however, thought it wou...
A.
there was little chance of being selected
B.
they weren't experienced enough
C.
they thought they might get killed
D.
it wasn't exciting enough
【单选题】Sam refused to take the job because ____.
A.
the working hours were unsuitable
B.
the job was not well paid
C.
he had to do a lot of travelling
D.
the job was quite difficult
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