病室的室内温度一般应在()。
A.18℃~20℃
B.36.2℃~37.2℃
C.50%~60%
D.70%~80%
E.80%~90%
参考答案:A
your school magazine ________ yet?
A.Has, been published
B.Does, published
C.Did, publish
D.Did, be published
水管锅炉的辐射受热面有()的水循环回路。
A.单独;
B.明确;
C.不确定;
D.模糊。