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【单选题】
在下列量具中，精度最高的是（）。A.
钢直尺
B.
内卡钳
C.
游标卡尺
D.
千分尺
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皮皮学刷刷变学霸
举一反三
【单选题】Calculate the power supplied or absorbed by p1 element in Figure.【图片】
A.
-100 W
B.
100 W
C.
-20 W
D.
20 W
【单选题】在第一肝门区出入的管道结构是: 1 门静脉;2 肝固有动脉;3胆总管;4 肝静脉 A、123 B、13 C、24 D、4 E、1234
A.
①②③
B.
①③
C.
②④
D.
④
E.
①②③④
【单选题】The maximum power supplied to the load R L in Fig. 4.3 is:
A.
20W
B.
80W
C.
10W
D.
100W
【简答题】三、 Translation (每题 5分,共25分) Directions: Read the following text carefully and then translate the underlined segments into Chinese. Your translation should be written clearly on ANSWER SHEET. Within th...
【判断题】In a whole circuit,the total power supplied equals the total power absorbed.A. √ B. ×
A.
正确
B.
错误
【单选题】In the circuit, the power supplied by the voltage source is 12 W,then the resistance R is:
A.
2Ω
B.
6Ω
C.
3Ω
D.
1Ω
【单选题】The power supplied by the elements in the circuit is 1 W, and the voltage is ( ).
A.
50 V
B.
-50 V
C.
0.5 V
D.
-0.5 V
【单选题】As shown in the picture, U=10V, I=50mA, the power supplied by the element is ( ).
A.
0.5 W
B.
-0.5 W
C.
500W
D.
-500W
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