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问题 单项选择题

网管上“同步告警”功能项的作用是（）

A、使设备将主要告警上报网管

B、使设备将危急告警上报

C、显示设备当前告警

D、使设备上报所有当前告警——自动上报、非自动上报

答案

参考答案：D

多选题

如图所示，水平桌面上的物体受到水平方向的力F1、F2和摩擦力的作用而处于静止状态，其中F1=10N，F2=2N。当撤去F1后，物体的受力情况及所处状态是

[ ]

A．物体所受合力为零

B．物体受到的合力为6N

C．物体将向左运动

D．物体仍然静止
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单项选择题

There was a big sea bird that was very beautiful. One day, the sea bird (1) to a country and stayed outside of a palace. The Emperor asked his men to bring it to the palace. Then he said," As a (2) for the sea bird, we’ll set up the band and get the best food and wine ready for it. "(3) they played the best music for the sea bird, but it looked (4) . The Emperor introduced the most delicious food and best wine and asked the bird to have them. But the sea bird (5) After three days without eating or drinking, the sea bird (6)  .The Emperor said (7) , "Why didn’t you eat I gave you all of the (8) !"The story tells us that what some people believe to be the best music and the best food aren’t so for (9) . Feed a bird according to a bird’s wants, not a person’s. The (10) "Do to others as you would have others do to you. " is never really suitable or right.

第（2）空应选择（）

A．welcome

B．meeting

C．host

D．guest
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