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【单选题】
对于函数y=f（x），在给定区间上有两个数x 1 ，x 2 ，且x 1 ＜x 2 ，使f（x 1 ）＜f（x 2 ）成立，则y=f（x）（ ）A.
一定是增函数
B.
一定是减函数
C.
可能是常数函数
D.
单调性不能确定
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反馈参考答案：
举一反三
【单选题】Static VLANs are being used on the Company network. What is true about static VLANs？（）
A.
Devices use DHCP to request their VLAN.
B.
Attached devices are unaware of any VLANs.
C.
Devices are assigned to VLANs based on their MAC addresses.
D.
Devices are in the same VLAN regardless of which port they attach to.
【单选题】What is LEAST likely to cause ignition of fuel vapors ________．
A.
Static electricity
B.
An open running electric motor
C.
Loose wiring
D.
Explosion proof lights
【判断题】Is it a proper way to refuse an orde like this? I' m terribly sorry that we can't accept your order.
A.
正确
B.
错误
【简答题】搜集能够引起个人思考的抗击疫情中的人物行为、事件,或者自己关于 生命、敬畏、勇敢、付出、担当 等的思考与感悟。 写一篇 800字以上 的文章; 或 3-4人 为一组编写 10分钟以上 的剧本。 要求: (1)文章文体不限,剧本主题鲜明,情节丰富,题目均自拟,要求手写于A4纸上; (2)上交作业时间:开学面课第二周上课前; (3)负责人收好作业,按着学号顺序排好,统一上交。
【简答题】I'm not in the mood _______ going to the party. There is no point _______ going by car if we can't park near the theatre. I've had enough ________ this weather. Since Harry is ill, we need a substitut...
【简答题】We can't accept your offer unless the price is reduced by 5%.
【单选题】We can't accept your offer unless the price is reduced ______ 3%.
A.
with
B.
by
C.
to
D.
for
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