SSB发射机在中波波段工作，则中波波段的天线主要显现（）
A、容性电抗
B、感性电抗
C、电阻
D、不确定
参考答案：A
小儿肠套叠的X线表现
A．不凝固血液B．粪臭味液体C．稀脓性、略带臭味液体D．血性液体E．血性液，胰淀粉酶含量高
句型转换（每空1分，共10分）
小题1:I can sing English songs.(变一般疑问句)
__________ _________ sing English songs?
小题2:She usually gets up at six. (就划线部分提问)
____________ __________ does she usually get up?
小题3:Jack goes to school by bike. (就划线部分提问)
___________ __________ Jack go to school?
小题4:Can Lily and Lucy swim? (作否定回答)
___________ , they ___________.
小题5:school / your / from / it / is / how far / home / to / ?（连词成句）
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