某工地新进一批铝合金门窗,铝合金门窗具有较强的实用性。
铝型材表面饰面材料有:还原类和喷涂类。()
A.正确
B.错误
参考答案:B
With a large amount of equipment________ ,the boss asked the employees to work extra hours.
A.remaining to be repaired
B.remained to be repaired
C.remaining to repaire
D.remained to repaire
在胃酸中稳定且无味的抗生素是( )。
A.红霉素B.琥乙红霉素C.克拉霉素D.阿奇霉素E.罗红霉素