以下哪种情况属于出生后需要密切监护的高危儿
A．母亲有糖尿病
B．母亲年龄大于40岁
C．急产
D．出生时有窒息
E．胎盘早剥
参考答案：A,B,C,D,E
看轴测图要看沿着轴方向的（）。
A、变形系数
B、轴间角
C、标注
D、尺寸数字
How many minutes will it take to completely fill a water tank with a capacity of 3,750 cubic feet if the water is being pumped into the tank at the rate of 800 cubic feet per minute and is being drained out of the tank at the rate of 300 cubic feet per minute
A．3 min. 36 see.
B．6 minutes
C．7 min. 30 sec.
D．8 minutes
E．(E) 1,875 minutes
