【判断题】一般在只需切断而不需流量调节的地方,为了减少管道阻力,选择截止阀。需要流量调节的地方选择闸阀或针型阀。
【单选题】一般只需要切断而不需要流量调节的地方,为减小管道阻力一股选用( )。
【单选题】Mr. King didn’t know __________ yesterday evening.
A.
when does his son came home
B.
when his son comes home
C.
when his son came home
D.
when did his son come home
【判断题】一般在只需切断而不需流量调节的地方为了减少管道阻力,选择止回阀。需要流量调剂的地方选择闸阀或针型阀。
【单选题】Mr. King didn't know _______ yesterday evening. [ ]
A.
when does his son come home
B.
when his son comes home
C.
when did his son come home
D.
when his son came home
【单选题】The old man didn’t have a rest ______ his son came back..
【单选题】患者女,因粘连性肠梗阻腹痛伴呕吐2天入院。血清钾为3mmo/L,给予静脉补充钾盐。护理措施错误的是
【单选题】When his son came back, the old man ______.
【单选题】一般只需要切断而不需要流量调节的地方,为减小管道阻力一股选用( )阀。