A:4
B:5
C:6
D:7
-- Are all the titles of the articles ______ in the contents?
--Yes, all ______.
下句中,只有一处错误,请找出并改正。
He should have his hair cuts.
____
1米=____分米 1厘米=____毫米
40毫米=____厘米 300厘米=____分米