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【单选题】
无膜肺炎双球菌与有膜肺炎双球菌的DNA混合培养,产生有膜菌的过程为 ( )A.
突变
B.
重组
C.
转化
D.
转导
E.
转座
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反馈参考答案：
举一反三
【简答题】简述凯恩斯的货币需求函数。
【单选题】I'll call ______ you at 8:30 and pick up you to work. Please don't be away at that time.
A.
in
B.
for
C.
off
D.
up
【单选题】This matter is ______you and me.Just don't give it away to anybody.
A.
between
B.
among
C.
都可以
D.
都不是
【单选题】Don't expect to love new flavors right away (and certainly don't expect your kids to). Just keep serving the new dishes, and soon neither you nor your palate will recall what all the fuss was about.
A.
an activity that is needlessly or excessively busy or excited
B.
a complaint often over something insignificant
C.
a noisy disagreement or dispute
D.
decoration or ornamentation regarded as excessive
【单选题】Childhood anxieties and fears don't automatically die away as the child grows.
A.
Y
B.
N
C.
NG
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