射水抽气器以()作为射水泵工作水源。
A、循环水或工业水;
B、凝结水;
C、软水;
D、自来水。
参考答案:A
You’d better not phone the manager between 7 and 8 tomorrow evening; he ________ an important meeting then.
A.will have
B.would have
C.will be having
D.will have had
精神发育迟滞患者伴有精神病性症状的有()
A.10%~20%
B.21%~40%
C.41%-60%
D.61%~70%
E.71%~80%