高压煤浆泵属于(),液缸部分主要由()、液缸体、()等组成。
参考答案:隔膜泵,进出口单向阀,隔膜
.—Do you feel like ________ there or shall we take a bus?
—I’d like to walk. But since there isn't much time left, I'd rather we________ a taxi.
A.walking; hire
B.to walk; hire
C.to walk; hired
D.walking; hired
Peutz-Jeghers综合征的胃肠道息肉最多见的部位是()
A.胃
B.直肠
C.小肠
D.结肠
E.回肠