虚劳专书是指( )
A.《不君集》B.《理虚元鉴》C.《难经》D.《医宗金鉴》E.《医宗必读》
参考答案:B
如果a:b=1:2,b是a、c的比例中项,则下面结论正确的是( )
A.a:c=1:2
B.a:c=2:1
C.b:c=1:2
D.b:c=2:1
用some... others ... 翻译句子。
Some buildings were destroyed and many others were damaged in the blast.
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