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【简答题】
要选定整个表格应单击表格左上角的______。
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皮皮学刷刷变学霸
举一反三
【单选题】Some multimeters have a "transistor test" function which provides a known base current and measures the collector current so as to display the transistor's .
A.
AC voltage gain
B.
DC current gain
C.
AC current gain
D.
DC voltage gain
【简答题】display the voltage waveform
【简答题】二极管的质量抽检中，二极管1N4001为（ ）二极管，王小鸭测得此二极管两端正反向电阻均为 无穷大 ，说明二极管已经（ ）。
【多选题】How can we write a successful topic sentence?
A.
Balance the topic sentence.
B.
Introduce yourself.
C.
State your topic sentence clearly.
D.
Give a reasonable opinion.
【单选题】An oscilloscope to display a voltage–time(V/t)graph,a graph of voltage against time. Voltage on the vertical or Y-axis, and time on the horizontal or X-axis.
A.
曲线图
B.
电压-时间
C.
垂直或Y轴
D.
水平或X轴
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