皮皮学,免费搜题
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【单选题】
原核微生物的基因重组不包括( )。
A.
转化
B.
转导
C.
接合
D.
准性杂交
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【单选题】我国佛光出现的次数最多,也最精彩的是( )
A.
泰山
B.
黄山
C.
华山
D.
峨眉山
【单选题】眼球血管膜( )
A.
位于眼球最外层
B.
位于眼球最内层
C.
富有神经、血管和色素细胞
D.
由前向后分为虹膜、睫状体、脉络膜
E.
由疏松结缔组织构成
【简答题】Everyone's path to success is different. For some, it's mostly straight and smooth. Others meet more twists, turns, and bumps along the way. So what were highly successful people doing at age 25? 1. P...
【简答题】1 “I will think of it.” It is easy to say this, but do you know what great things have come from thinking? Though we can not see, or hear, or feel our thoughts, they have great power( 力量 )! 2 Isaac Ne...
【单选题】—What is your father's brother? —He is _____. [     ]
A.
a teacher
B.
fine
C.
tall
D.
doing his homework
【简答题】Fill in the blank in each of the following sentences with a suitable preposition or adverb. 1. Speeches distinguish human beings __________ animals. 2. The idle son gives himself no concern __________...
【单选题】人体血浆最重要的抗酸成分是( )
A.
H 2 CO 3
B.
HCO 3 -
C.
H +
D.
OH -
【简答题】读短文回答问题。 He is John, his father is a driver, they usually go out in his father's car on Sundays. Sometimes they go swimming. Sometimes they go to see his uncle. His uncle is very good at fishing. He c...
【单选题】What is his father's job? ( )
A.
A taxi driver.
B.
A dentist.
C.
A police officer.
D.
A manager.
【单选题】Our father's health is what matters, and the cost of his treatment is of ( ) importance.
A.
secondary
B.
modify
C.
cling
D.
delegate
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