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【简答题】
A．手太阴、手阳明经 B．手阳明、足阳明经 C．手阳明、足少 D．手太阴、足少 E．手太阳、足太 治疗鼻渊，用哪组经脉为主( )
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举一反三
【单选题】对于原癌基因激活机制中基因易位的叙述,错误的是
A.
可在染色体易位过程中发生
B.
原癌基因移至强启动子下游附近
C.
原癌基因移至强增强子附近
D.
强启动子插入原癌基因
E.
原癌基因移至强启动子上游附近
【单选题】Two equal charges of magnitude + 1 C are separated by a distance of 1 km. What is the force acting between these two charges?
A.
9 N
B.
90 N
C.
900 N
D.
9000 N
【单选题】Two charged objects are separated by a distance d. The first charge is larger in magnitude than the second charge.
A.
The first charge exerts a larger force on the second charge.
B.
The second charge exerts a larger force on the first charge.
C.
The charges exert forces on each other equal in magnitude and opposite in direction.
D.
The charges exert forces on each other equal in magnitude and pointing in the same direction.
【单选题】If the magnitude of the sum of two vectors is less than the magnitude of either vector, then:
A.
the scalar product of the vectors must be negative
B.
the scalar product of the vectors must be positive
C.
the vectors must be parallel and in opposite directions
D.
the vectors must be parallel and in the same direction
E.
none of the above
【单选题】工程量计算规范中规定,()是沟槽,()是基坑,超出上述范围则为一般土方。
A.
底宽≤7m且底长≤3倍底宽,底长≤3倍底宽且底面积≤150㎡
B.
底宽≤7m且底长>3倍底宽,底长≤3倍底宽且底面积≤150㎡
C.
底宽≤7m且底长>3倍底宽,底长≤3倍底宽且底面积>150㎡
D.
底宽≤7m且底长≤3倍底宽,底长>3倍底宽且底面积≤150㎡
【简答题】细菌增值的方式是
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