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【判断题】
酚醛树脂是酚类和醛类的缩聚产物反应介质 PH 值大于 7 可以得到热塑性酚醛树脂()A.
正确
B.
错误
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【单选题】－I've studied growing plants as one of my interests. Could I make some suggestions? － . [ ]
A.
You will make it
B.
Go right ahead
C.
Don't mention it
D.
Take it easy
【单选题】下列不属于计算机病毒防治策略的是
A.
确认手头常备一张真正“干净”的系统引导启动盘
B.
及时、可靠地升级反病毒软件
C.
定期整理磁盘上存贮的文件
D.
新购置的计算机软件也要进行病毒检测
【简答题】Few kids today are taught the value of empathy. I t seems so hard for people to show their love and care toward others and actually understand what they are going through. I was raised in a very lovin...
【单选题】.I will make it _________.
A.
as easily as I can
B.
as easy as possible
C.
so easy as possible
【简答题】按GB7588规定，直接与电源连接的电动机应进行短路保护。试回答： （1）短路保护作用是什么？ （2）直接表示什么？不直接表示什么？ （3）可以采用哪些元件？ （4）这些电器元件额定电流或整定电流应为多大合适？
【单选题】–I've studied gardening as a hobby. Could I make some suggestions? –______.
A.
You will make it
B.
Go right ahead
C.
Don't mention it
D.
Take it easy
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