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【单选题】
胞质中合成脂肪酸的限速酶是A.
乙酰CoA羧化酶
B.
β-酮脂酰-ACP合成酶
C.
乙酰CoA-ACP酰基转移酶
D.
脂肪酸合成酶
E.
水化酶
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【简答题】Yannis has two sons of 8 and 10. He would like to take them to see some animals in the countryside. He wants to be able to buy some refreshments.
【单选题】He has been writing the composition the whole morning and he still ________.
A.
has been
B.
does
C.
has
D.
is
【单选题】—Is Bob still teaching? —I’m afraid not. He is said the school as he has become a businessman.
A.
that he has left
B.
to leave
C.
to have left
D.
to be left
【单选题】—What’s the matter with Jim? —______.
A.
I’m sorry to hear that
B.
He’s tall and has big eyes
C.
He has a toothache
D.
He’s having breakfast
【单选题】以下对图书超期处理说法正确的是( )
A.
读者应按期归还所借图书,逾期未还者,系统将自动暂停其借书权限,并按每册图书每天交纳逾期费0.10元
B.
读者在寒暑假期内到期的图书,可在下学期开学后7日内归还,超过者将按实际逾期天数(不计寒暑假)处罚
C.
读者因到外地出差、学习或有特殊情况等,未能按期归还所借图书,须由所在单位出具书面证明,图书馆经核实后可按实际情况酌情处理
D.
以上都正确
【简答题】Today is Friday. Peter has six classes today. He goes to school at 7:30 a.m. At 8:00 a.m., he begins his first class. The first class is English. At 9:00 a.m., he has math. Peter likes math because it...
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