DRAPL在线轧机侧支撑辊更换标准为连续使用()天。
A:15;
B:30;
C:35
参考答案:B
用括号中所给词的正确形式填空。
1. The red toothbrush is (I).
2. The (child) are singing now.
3. He (want) everyone to sing loudly.
4. This is (a) umbrella.
5. It's time for class. (not eat), please.
小儿扁桃体炎的好发年龄为()
A.新生儿
B.1岁
C.1~3岁
D.4~10岁
E.14~15岁