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【判断题】
STM32系列MCU在使用电池供电时，提供3.3至5V的低电压工作能力。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】He ___ coffee at all. He ___ tea.
A.
doesn't like，prefers
B.
doesn't like，prefer
C.
don't like，prefers
D.
dont't like，prefer
【简答题】写出电容率为ε=ε 0 ε r 的电介质中极化体电荷密度ρ p 和极化面电荷密度ρ pS 与电场强度 的关系式，并简要说明极化电荷密度与分布电荷密度的异同。
【单选题】None of us knows which floor _______ on.
A.
is she
B.
she living
C.
she is
D.
did she live
【简答题】单位体积的 电 偶极矩的矢量和称为极化强度,它 与极化电荷密度的关系式为 , 与极化电荷面的密度的关系式为 。
【单选题】He doesn ’ t like coffee at all. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
S+V+O
B.
S+LV+P
C.
S+V
【单选题】We need some____ advice on the problem because none of us knows anything about it. [ ]
A.
expert
B.
skilled
C.
familiar
D.
similar
【单选题】He_____________coffee at all. He____________tea.
A.
doesn’t like, prefers
B.
likes, doesn’t prefer
C.
would like, not prefers
【简答题】He _______coffee at all. He_______tea.A. doesn't like; prefers B. likes; doesn't prefer C. would like; not prefers D. prefers; is not fond of
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