皮皮学,免费搜题
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【单选题】
不属于DNA复制起始所需的物质是( )。
A.
引物酶
B.
单链结合蛋白
C.
拓扑异构酶
D.
解链酶
E.
连接酶
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【单选题】{This is a decision tree to determine whether someone will play basketball or not. If it is rainy with strong wind, will they play basketball?}
A.
Yes
B.
No
【单选题】光镜下肾 HE 染色切片,近曲小管上皮细胞分界不清是因为
A.
胞质嗜酸性强,染色深
B.
相邻细胞的侧突相互嵌和
C.
细胞排列紧密
D.
细胞膜较薄
【单选题】_______等级的绝缘材料,其耐热极限温度最高。
A.
Y级
B.
B级
C.
F级
D.
E级
【判断题】熔融固体样品时,应根据熔融物质的性质选用合适材质的坩埚。( )
A.
正确
B.
错误
【单选题】A decision tree is a way of representing decision choices in the form of a diagram. It is usual for decision trees trees to include probabilities of different outcomes. The following statements have b...
A.
(i)
B.
(ii)
C.
(iii)and(iv)
D.
(i)and(ii)
【单选题】A decision tree is a way of representing decision choices in the form of a diagram. It is usual for decision trees to include probabilities of different outcomes. The following statements have been ma...
A.
1 only
B.
2 only
C.
Neither 1 nor 2
D.
Both 1 and 2
【单选题】下列哪个等级的绝缘材料,其耐热极限温度最高是()。
A.
A级
B.
B级
C.
C级
D.
E级
【单选题】_______等级的绝缘材料,其耐热极限温度最高。
A.
H级
B.
B级
C.
A级
D.
E级
【单选题】若反应A(g)+2B(g)=C(g)+D(g)为基元反应,则反应级数为:
A.
0
B.
1
C.
2
D.
3
【单选题】光镜下肾HE染色切片,近曲小管上皮细胞分界不清,是因为
A.
胞质嗜酸性强,染色深
B.
相邻细胞的侧突相互嵌和
C.
细胞排列紧密
D.
细胞膜较薄
E.
刷状缘的存在
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