触电者脱离电源后，应立即进行( )的检查。
A．呼吸和心跳
B．呼吸和脉搏
C．创伤和心跳
D．脉搏和心跳
参考答案：A
—What's John going to do next Saturday?
—I am not sure. He_____ go to the country to see his aunt. [ ]
A. can
B. must
C. may
D. will
在MSG7200，SMEM板的功能是用于（）.
