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【单选题】
下列对分子、原子、离子的认识正确的是A.
原子是最小的粒子，不能再分
B.
分子是化学变化中不可再分的粒子
C.
离子是原子中质子数发生变化形成的粒子
D.
原子的最外层电子数与元素的化学性质密切相关
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反馈参考答案：
举一反三
【简答题】A.They became hunters or battle fighters. B.They did what a wise man would do. C.They did something like an actor might do. D.They tried to predict future success.
【单选题】Why did Thai Buddhist monks fight with troops according to the news report?
A.
Thai government refused to name Buddhism as the country's national religion.
B.
Soldiers tried to stop Buddhist monks from entering a park.
C.
Thai Buddhism has been hurt by leaders who have many luxuries.
D.
Thai government refused to reform Thai Buddhism.
【单选题】配置有信息系统设备的机房内应设等电位连接网络，对于高频(f＞10MHz)信息设备宜采用( )。
A.
S型结构
B.
M型结构
C.
S型和M型两种结构型式的组合
D.
等电位连接
【简答题】糖浆剂的配制方法有______、______、______。
【单选题】配置有信息系统设备的机房内应设等电位连接网络，对于低频(f＜1MHz)信息设备宜采用( )。
A.
S型结构
B.
M型结构
C.
S型和M型两种结构型式的组合
D.
等电位连接
【简答题】糖浆剂的配制方法有()、()和()。
【单选题】What will the man do?
A.
Leave and find his own seat.
B.
Keep sitting in that seat.
C.
Let the woman sit next to him.
【单选题】Don’t leave your seat ________ all the papers have been collected by the teacher.
A.
after
B.
when
C.
since
D.
until
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