室内常用的消防水带规格有（）、D65。
参考答案：D50
—_______ bike is this?
—It's _______.[ ]
A. Who's, my father's friend
B. Whose, my father friend's
C. Whose, my father's friend's
D. Who's, my father friend
人误饮（）ml以上甲醇即有眼睛失明危险。
A、8
B、10
C、12
D、16
