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【单选题】
用剖切面局部地剖开机件所得的视图称( )视图。
A.
全剖
B.
局部剖
C.
半剖
D.
断面
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举一反三
【单选题】Which of the following is true according to the passage?
A.
The goalmouth is equal to the weapon in hunting
B.
Without hunting our forefathers couldn't live
C.
After our forefathers became farmers, they still hunted for food
D.
Farmers are satisfied with stable lives, and they didn't have enthusiasm for hunting any more
【单选题】十六进制数12AH中,2位上的权值是( )
A.
0
B.
10
C.
16 1
D.
16 0
【判断题】目标是集体发展的方向和动力,一个班集体只有具有共同的目标,才能推动班集体的发展。()
A.
正确
B.
错误
【单选题】( )是班集体发展的方向和动力,是班集体形成的基础条件。
A.
共同目标
B.
一定的组织结构
C.
共同生活的准则
D.
和谐的人际关系
【单选题】关于逻辑判断,以下说法正确的是__________。
A.
通常我们用逻辑值“真”或“假”表示条件“满足”或“不满足”。
B.
在高级程序设计语言中(比如:Python语言),通常允许用数值充当逻辑值。
C.
比较运算的运算量可以是多种数据类型,而结果是逻辑值。
D.
A、B、C都对。
【单选题】利用根瘤农杆功制备转基因植物 的主要步骤包括:
A.
先构建含有目的基因的载体,然后将载体转入根瘤农杆菌;
B.
将要感染的植物形成伤口,便于根瘤农杆菌的感染或培养植物细胞;
C.
将根瘤农杆菌与植物器官或植物细胞共培养一段时间,实现根瘤农杆菌的感染;
D.
筛选阳性植物或细胞
【单选题】在C语言中,用于表示逻辑“真”的值是( )。
A.
T
B.
1
C.
-1
D.
非零值
【单选题】十六进制数12AH中,A位上的权值是( )
A.
0
B.
10
C.
160
D.
100
【单选题】Which of the following is true of the heating system of the Johnstown campus?
A.
The heat is supplied by human bodies only.
B.
The heat is supplied by both human bodies and other heat-emitting objects.
C.
The heat is supplied by both human bodies and conventional fuel.
D.
The heat is supplied by human bodies, other heat-emitting objects, and con-ventional fuel.
【单选题】Which of the following is NOT true about the 'rejection phase'?
A.
The newcomer is stressed but positive.
B.
The newcomer pays much attention to the negative sides of life.
C.
The newcomer refuses to accept the host culture.
D.
If the newcomer is not strong-willed enough, he may not be able to survive this stage successfully.
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