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【单选题】Animal and plant cells are typically 5 to 100 μm in diameter, and many unicellular microorganisms are only 1 to 2 μm long.Assume a plant cell is a cylinder (diameter 48.0 μm, height 85.0 μm), with a d...
A.
23.0 ng
B.
33.0 ng
C.
43.0 ng
D.
53.0 ng
【单选题】Animal and plant cells are typically 5 to 100 μm in diameter, and many unicellular microorganisms are only 1 to 2 μm long. Assume a human hepatocyte is a cylinder (diameter 14.0 μm, height 15.0 μm), w...
A.
1.2 ng
B.
2.0 ng
C.
2.4 ng
D.
3.4 ng
【单选题】Plant cells are usually 10 to 100 μm in diameter—larger than animal cells, which typically range from 5 to 30 μm. Assume a human hepatocyte is a cuboid (length 13.0 μm, width 10.0 μm, height 17.5 μm),...
A.
1.2 ng
B.
1.8 ng
C.
2.4 ng
D.
2.8 ng
【多选题】下列有关互联网金融发展推动因素的说法中正确的有
A.
技术、应用与监管是推动互联网金融发展的主要因素
B.
互联网技术的进步是互联网金融发展的前提
C.
应用需求包括经济活动支付需求、网络直接融资需求和财富管理需求
D.
规避或绕开监管不是互联网金融创新的重要动力
【判断题】m is a numerical factor that is typically between 1.5 and 2.5, though for many LEDs, m=3 is a good value.
A.
正确
B.
错误
【单选题】Animal and plant cells are typically ______ μm in diameter.
A.
5-10
B.
5-15
C.
5-20
D.
5-50
【单选题】Plant cells are usually 10 to 100 μm in diameter—larger than animal cells, which typically range from 5 to 30 μm. Assume a human hepatocyte is an oval (a 6.5 μm, b 7 μm, c 12 μm, radius), with a densi...
A.
2.2 ng
B.
2.4 ng
C.
2.8 ng
D.
3.0 ng
【单选题】检测发动机曲轴转角和活塞上止点,并将检测信号及时送至发动机ECU,用以控制点火时刻和喷油正时的传感器是
A.
曲轴位置传感器
B.
转速传感器
C.
霍尔传感器
D.
空气流量传感器
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