载气(N2)和氢气的流量比对FID的响应值影响比较大,一般来说,N2:H2的比值应该控制在()。
A、0.5~1
B、1~1.5
C、1.5~2.0
D、8~10
参考答案:B
China has been pushing the reform of public hospitals ________ all its citizens.(2012·福建,26)
A.in charge of
B.for the purpose of
C.in honor of
D.for the benefit of
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