遗传筛查的手段应包括()
A．羊膜腔穿刺行羊水检查
B．绒毛活检
C．羊膜腔胎儿造影
D．CT
E．胎儿镜检查
参考答案：A,B,C,E
.--- Excuse me, can you tell me the way to the bank?
---Oh, that's ____, it's either the second or the third road on the left.
A．the difficult one
B．a hard one
C．an easy one
D．the very one
The comedy actor, _____ only 55 kilos but ____ in a heavy oversized coat , looked funny enough to make all the audience laugh.
A．weighed; dressed
B．weighed; dressing
C．weighing; dressed
D．weighing; dressing
