CT用X线管的突出特点是（）
A.只有一个焦点
B.外形尺寸明显加大
C.额定功率明显加大
D.阳极热容量明显加大
E.有效焦点面积明显加大
参考答案：D
I have no choice, ____ you see, but only to wish that I____my daughter to that sort of man. [ ]
A. which; shouldn't marry
B. as; shouldn't have married
C. which; mustn't have married
D. as; hadn't married
After the 3 – day trap in the mudslide in Zhouqu(舟曲), the old man in the end.
A．passed down
B．passed by
C．passed on
D．passed away
