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【单选题】
下 列说法不正确的是( )A.
金属导体的电阻是由它的长短、粗细、材料的性质和温度决定的。
B.
温度每升高 1 ℃时电阻所变动的数值与原来的电阻值的比值，叫做电阻的温度系数。
C.
在一定温度下，对同一种材料，电阻率是常数。
D.
两根同种材料的电阻丝，长度为 L 1 :L 2 为 2:3 ，横截面积 S 1 :S 2 为 3:4 ，若将它们串联接入电路，则它们消耗的功率 P 1 :P 2 为 9:8 。
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【单选题】The doctor persuaded the patient ____.Which statement is WRONG?
A.
not to smoke again
B.
to stop smoking
C.
to stop to smoke
D.
into stopping smoking
【简答题】随机掷一枚均匀的骰子，点数＜3的概率是______．
【单选题】According to the passage, which of the following statement about 'resveratrol' is WRONG?
A.
It is believed to have the effect of disease prevention.
B.
It can work as an artery cleaner.
C.
It can get rid of abundant fat in rich foods.
D.
It can decrease lung-disease-caused inflammation.
【单选题】Which statement of following is wrong?( )
A.
There were many cold conflicts in the cold war, such as weapon competition and spying.
B.
Germany reunited in 1990.
C.
The USSR was dissolved in 1990.
D.
After the USSR dissovled, 15 new countries were created.
【简答题】pass sth . on to sb. 我们应给我们的后代传递什么传统价值 ?
【单选题】Which statement is wrong?
A.
Art belongs to all
B.
Art is art
C.
Art can be seen in everywhere
D.
Art is expensive
【简答题】形成降水的充分必要条件是什么?
【单选题】which statement is wrong?
A.
Each micro mirror corresponds to one dot or pixel in a projected image.
B.
The mass in a MEMS accelerometer returns to central position when the car is at rest.
C.
Compared to MEMS accelerometer, earlier systems needed many sensors to obtain the same data.
D.
DMD devices cannot be used to show colorful images.
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