水套加热炉是以()为传热介质。
(A)天然气
(B)软化水
(C)火
(D)火管
参考答案:B
连词成句。
1. are four seasons there a year in
.
2. to ski like I on snow the
3. do else do in China winter what you in
?
4. season your favourite what is
5. to going teach is Li Ming Danny to skate
生长发育完成的年龄是().
A.女性14~16岁
B.男性16~18岁
C.男性14~16岁
D.男性24岁左右
E.男性17~19岁