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【简答题】
最后一个字在演唱时要弱结束还是强结束?
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反馈参考答案：
举一反三
【单选题】The new manager had a bad cold, and _________ couldn’t come to the party.
A.
besides
B.
because
C.
however
D.
therefore
【单选题】— What’s the matter with you? —I had bad cold and had to stay in bed.
A.
a; /
B.
a; the
C.
a; a
D.
the; the
【单选题】The reason (why) Jack (failed) to (attend) the lecture is (because) he had a bad cold.
A.
why
B.
failed
C.
attend
D.
because
【单选题】--Is Jim at school today? -- No, he's at home ______ he has a bad cold.
A.
because
B.
if
C.
though
D.
until
【单选题】在基本共射电路中,基极偏置电阻 的作用是 。
A.
限制基极电流，使晶体管工作在放大区，并防止输入信号被短路
B.
把基极电流的变化转换为输入电压的变化
C.
保护信号源
D.
防止输出信号被短路
【简答题】I had my meals brought to me when I was ill in bed with a bad cold．
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