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【单选题】
Civil engineering materials can be dived into brittle materials and toughness materials, and the characteristic of brittle materials is ( ).A.
that they fails without obvious deformation
B.
that their compressive strength is two times of their bending strength
C.
that they can absorb high energy before cracking
D.
that they fails without deformation
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【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】Each type of multimeter has its advantages. Used as a voltmeter, 1 multimeteris usually better because its resistance is much higher, 1 Mega-ohm or 10 Mega-ohm, compared to 200 kilo ohm for 2 multi-me...
【单选题】To write the topic sentence of an opinion paragraph, you should ________.
A.
take a stand on a given topic
B.
state a fact
C.
give the main reason for your opinion
【多选题】Each type of multimeter has its advantages. Used as a voltmeter, ( ) multimeter is usually better because its resistance is much higher, 1 Mega-ohm or 10 Mega-ohm,compared to 200 kilo-ohm for ( ) muli...
A.
an analog
B.
a digital
C.
voltage
D.
current
【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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