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【单选题】
用于酶生产的发酵方法有固体发酵法和液体发酵法，下列哪种酶的生产方法不属于固体发酵法的范畴（）。A.
用曲霉和霉生产淀粉酶和蛋白酶
B.
用青霉和曲霉生产果胶酶
C.
用木霉生产纤维素酶
D.
用木瓜生产木瓜蛋白酶
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皮皮学刷刷变学霸
举一反三
【单选题】What tense should be used to report what was done in experiments?
A.
The present tense.
B.
The past tense.
C.
The future tense.
D.
The perfect tense.
【单选题】When foreign students leave America, they will bring American values back to their home countries.
A.
A
B.
B
C.
C
D.
D
E.
E
F.
F
G.
G
H.
H
I.
I
【单选题】What tense should be mentioned in a survey report?
A.
present tenses
B.
past tenses
C.
future tenses
D.
perfect tenses
【单选题】If you were writing the literature review, and you had a sentence indicating that the statement a scholar makes continues to be true, what tense should you use in the sentence?
A.
Simple present
B.
Future tense
C.
Present perfect
D.
Simple past
【单选题】What tense should be used when findings are stated in the abstract?
A.
simple present tense
B.
simple past tense
C.
present perfect tense
D.
present continuous tense
【单选题】妊娠中期进行产前检查的正常间隔时间是 : ( )
A.
每周 1 次
B.
每 2 周 1 次
C.
每 3 周 1 次
D.
每 4 周 1 次
E.
每 5 周 1 次
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