心肺复苏时,成人使用2L简易呼吸器挤压()
A、1/2
B、1/3
C、2/3
D、3/4
参考答案:B
—Why do you want to learn French?
—I think it is fun _____ language after English. [ ]
A. to learn a
B. learn a
C. to learn another
D. learning another
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