煤气压力低于()Pa,不能点火。
A.700
B.800
C.850
D.900
参考答案:B
— You were late again, Peter.
—Sorry, I ______ to be here on time, but the traffic on the roads _____ heavy.
A.wanted; was
B.had wanted; was
C.wanted; would have been
D.had wanted; would have been
休克在血容量基本补足后,尿量多少提示可能有急性肾功能衰竭
A.60ml/h
B.50ml/h
C.30ml/h
D.25ml/h
E.<20ml/h