皮皮学，免费搜题
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【多选题】
PCR的基本反应步骤包括
A.
变性
B.
注册
C.
退火
D.
终止
E.
延伸
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参考答案：
参考解析：
知识点：
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..
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举一反三
【单选题】— How long does it take? — It takes ______. [     ]
A.
one and half an hour
B.
one hour and a half
C.
one hours and a half
D.
one and a half hour
查看完整题目与答案
【单选题】社会主义核心价值观中的富强、民主、文明、和谐是
A.
社会层面的价值取向
B.
个人层面的价值准则
C.
民族层面的精神追求
D.
国家层面的价值目标
查看完整题目与答案
【单选题】—What's your pen pal's name? —______ [     ]
A.
She is a girl
B.
She is OK .
C.
Kate Smith
查看完整题目与答案
【单选题】It_____ him one hour______ the exercises yesterday. [     ]
A.
takes; to do
B.
took; to do
C.
takes; doing
D.
took; doing
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【单选题】我国著名教育思想家陶行知认为幼儿教育应该解放儿童的( )
A.
主动性
B.
活动
C.
兴趣
D.
创造性
查看完整题目与答案
【单选题】About Teresita, which of the following statement is NOT true?
A.
She is a girl that deliver God’s message just like Joan of Arc.
B.
She may perform. miracles to people to convince them the existence of God.
C.
She is an great image but a little distant to common readers.
D.
She is of humble birth and lives a poor life.
查看完整题目与答案
【单选题】Nowadays, China has become the largest consumer of mobile phones. _______, every person has one mobile phone.
A.
Above all
B.
In other words
C.
On the whole
D.
On average
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【判断题】工件每转一分钟,车刀沿进给方向移动的距离称为进给量。
A.
正确
B.
错误
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【单选题】--What’s her name? —________
A.
She is a girl．
B.
She is OK．
C.
He is Tom．
D.
Her name is Kate．
查看完整题目与答案
【单选题】In a family, ______ really works is ____ there is one person who understands the finances and takes care of it.
A.
that; what
B.
what; that
C.
it; that
D.
as; that
查看完整题目与答案
相关题目：
【单选题】— How long does it take? — It takes ______. [     ]
A.
one and half an hour
B.
one hour and a half
C.
one hours and a half
D.
one and a half hour
查看完整题目与答案
【单选题】社会主义核心价值观中的富强、民主、文明、和谐是
A.
社会层面的价值取向
B.
个人层面的价值准则
C.
民族层面的精神追求
D.
国家层面的价值目标
查看完整题目与答案
【单选题】—What's your pen pal's name? —______ [     ]
A.
She is a girl
B.
She is OK .
C.
Kate Smith
查看完整题目与答案
【单选题】It_____ him one hour______ the exercises yesterday. [     ]
A.
takes; to do
B.
took; to do
C.
takes; doing
D.
took; doing
查看完整题目与答案
【单选题】我国著名教育思想家陶行知认为幼儿教育应该解放儿童的( )
A.
主动性
B.
活动
C.
兴趣
D.
创造性
查看完整题目与答案
【单选题】About Teresita, which of the following statement is NOT true?
A.
She is a girl that deliver God’s message just like Joan of Arc.
B.
She may perform. miracles to people to convince them the existence of God.
C.
She is an great image but a little distant to common readers.
D.
She is of humble birth and lives a poor life.
查看完整题目与答案
【单选题】Nowadays, China has become the largest consumer of mobile phones. _______, every person has one mobile phone.
A.
Above all
B.
In other words
C.
On the whole
D.
On average
查看完整题目与答案
【判断题】工件每转一分钟,车刀沿进给方向移动的距离称为进给量。
A.
正确
B.
错误
查看完整题目与答案
【单选题】--What’s her name? —________
A.
She is a girl．
B.
She is OK．
C.
He is Tom．
D.
Her name is Kate．
查看完整题目与答案
【单选题】In a family, ______ really works is ____ there is one person who understands the finances and takes care of it.
A.
that; what
B.
what; that
C.
it; that
D.
as; that
查看完整题目与答案