肺V20<25%时肺癌靶区剂量可给予（）。
A.60Gy
B.70Gy
C.80Gy
D.90Gy
E.100Gy
参考答案：D
The book, which ____ for children under 10, was ____ with adults readers.
A．intends, familiar
B．is intended, popular
C．intends, popular
D．is intended, familiar
一艘从印度孟买驶往日本运送铁矿石的船只需要经过（ ）
A．直布罗陀海峡
B．马六甲海峡
C．苏伊士运河
D．日本海峡
