皮皮学，免费搜题
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【单选题】
( )不是造成钎焊母材开裂的原因。A.
钎料结晶温度间隔过大
B.
母材过烧
C.
工件本身内应力引起的应力
D.
加热不均匀
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皮皮学刷刷变学霸
举一反三
【单选题】患者女,69岁,住院1月余,因外周血管均已破损,需长期静脉输液,行中心静脉穿刺,上肢首选的进针血管是
A.
锁骨下静脉
B.
肩胛上静脉
C.
肘正中静脉
D.
头静脉
E.
贵要静脉
【单选题】足月新生儿，生后2周。为预防维生素D缺乏佝偻病的发生，应建议每日口服维生素D的剂量是( )
A.
200IU
B.
400IU
C.
1000IU
D.
1500IU
E.
2000IU
【单选题】某早产儿,为预防维生素D缺乏性佝偻病的发生,应建议每日口服维生素D.的剂量是
A.
200IU
B.
800IU
C.
1000IU
D.
1500IU
E.
2000IU
【单选题】为预防佝偻病的发生,维生素D的预防剂量一般为每日
A.
100IU～200IU
B.
400IU～800IU
C.
1000IU～2000IU
D.
5000IU～10000IU
E.
10000IU～20000IU
【单选题】China, France and the United States are considered to______.
A.
be large producers of applesauce
B.
be large producers of apples
C.
have the longest history in apple production
D.
have the coldest winter among apple producing countries
【单选题】足月新生儿,生后2周。为预防维生素D佝偻病的发生,应建议每日口服维生素D的剂量是:
A.
200IU
B.
400IU
C.
1000IU
D.
1500IU
E.
2000IU
【单选题】The friendship between China and France is ______. We should prize it.
A.
eternal
B.
successive
C.
consecutive
D.
insistent
【单选题】足月新生儿，生后2周。为预防维生素D缺乏性佝偻病的发生，应建议每日口服维生素D的剂量是
A.
200IU
B.
400IU
C.
1000IU
D.
1500IU
E.
2000IU
【单选题】—Did you see Mr Smith when you were in France? —No. When I _______ France, he _______ to China. [ ]
A.
had arrived in; had gone
B.
arrived in; has been
C.
got to; had gone
D.
had got to; had been
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