使用人工呼吸器,呼吸比应为()
A.1:(0.5~2)
B.1:(1.5~2)
C.1:(1.0~3)
D.1:(0.5~1)
E.1:(1.5~2.5)
参考答案:B
It wasn't such a good present _____ my cousin had promised me.
[ ]
A. that
B. as
C. which
D. what
“一带一路”建设要改善边境口岸通关设施条件,加快边境口岸()建设,降低通关成本,提升通关能力。
A、电子窗口
B、无纸化窗口
C、便民窗口
D、“单一窗口”