皮皮学，免费搜题
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搜题
【单选题】
在新生儿下列哪种现象为不正常
A.
生后12小时排胎粪
B.
生后24小时排尿
C.
生后36小时心率200次/min
D.
生后48小时呼吸频率44次/min
E.
生后72小时发现乳腺轻度增大
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举一反三
【单选题】注射剂的质量要求不包括( )
A.
无菌
B.
无热源
C.
无色
D.
渗透压与血浆的渗透压相等获接近
E.
pH值与血液相等或相近
查看完整题目与答案
【单选题】The gaseous oxides of nitrogen have positive enthalpy changes of formation.Which factor is likely to make the most significant contribution to these enthalpy changes?
A.
the high bond energy of the nitrogen molecule, N2
B.
the high electron affinity of nitrogen atoms
C.
the high electron affinity of oxygen atoms
D.
the similarity of the electronegativities of oxygen and nitrogen
查看完整题目与答案
【单选题】注射剂的质量要求不包括
A.
无菌
B.
渗透压与血浆的渗透压相等或接近
C.
无色
D.
无热原
E.
pH值与血液相等或接近
查看完整题目与答案
【单选题】According to Confucius, _____ would be considered to be filial.
A.
to provide enough food to parents
B.
to let parents travel around the world
C.
to give parents a lot of money
D.
to provide parents with enough food and show respect to them as well
查看完整题目与答案
【单选题】立式车床横梁每次下降或上升时,应先将()上升或下降20~30mm后再下降或上升,这是为了消除间隙,以保持其位置精度
A.
滑板
B.
立柱
C.
横梁
D.
主轴
查看完整题目与答案
【多选题】下列对中药注射剂溶液的质量要求正确的是( )
A.
无菌
B.
无热原或无细菌内毒素
C.
无可见异物
D.
中药注射剂的pH值要求与血液的pH值相等或接近
查看完整题目与答案
【单选题】立式车床横梁每次下降或者上升时,应先将横梁上升或下降20~30mm后再下降或上升,这是为了消除(),以保持其位置精度
A.
摩擦力
B.
径向力
C.
轴向力
D.
间隙
查看完整题目与答案
【单选题】立式车床每次下降或上升横梁时，应先将横梁上升或下降mm，这是为了消除间隙，以保持其（）精度。
A.
位置
B.
尺寸
C.
形状
D.
定位
查看完整题目与答案
【单选题】Cancer should be considered to be a biological problem rather than a medical one because ______.
A.
viruses are known to cause cancer in animals
B.
at present, human cancer is not believed to be contagious (传染的)
C.
there are many known causes for the transformation of a normal cell to a cancer cell
D.
results of experiments on plants and animals do not vary greatly from species tn species
查看完整题目与答案
【判断题】The nitrogen atom in the compound below has a positive charge:
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【单选题】注射剂的质量要求不包括( )
A.
无菌
B.
无热源
C.
无色
D.
渗透压与血浆的渗透压相等获接近
E.
pH值与血液相等或相近
查看完整题目与答案
【单选题】The gaseous oxides of nitrogen have positive enthalpy changes of formation.Which factor is likely to make the most significant contribution to these enthalpy changes?
A.
the high bond energy of the nitrogen molecule, N2
B.
the high electron affinity of nitrogen atoms
C.
the high electron affinity of oxygen atoms
D.
the similarity of the electronegativities of oxygen and nitrogen
查看完整题目与答案
【单选题】注射剂的质量要求不包括
A.
无菌
B.
渗透压与血浆的渗透压相等或接近
C.
无色
D.
无热原
E.
pH值与血液相等或接近
查看完整题目与答案
【单选题】According to Confucius, _____ would be considered to be filial.
A.
to provide enough food to parents
B.
to let parents travel around the world
C.
to give parents a lot of money
D.
to provide parents with enough food and show respect to them as well
查看完整题目与答案
【单选题】立式车床横梁每次下降或上升时,应先将()上升或下降20~30mm后再下降或上升,这是为了消除间隙,以保持其位置精度
A.
滑板
B.
立柱
C.
横梁
D.
主轴
查看完整题目与答案
【多选题】下列对中药注射剂溶液的质量要求正确的是( )
A.
无菌
B.
无热原或无细菌内毒素
C.
无可见异物
D.
中药注射剂的pH值要求与血液的pH值相等或接近
查看完整题目与答案
【单选题】立式车床横梁每次下降或者上升时,应先将横梁上升或下降20~30mm后再下降或上升,这是为了消除(),以保持其位置精度
A.
摩擦力
B.
径向力
C.
轴向力
D.
间隙
查看完整题目与答案
【单选题】立式车床每次下降或上升横梁时，应先将横梁上升或下降mm，这是为了消除间隙，以保持其（）精度。
A.
位置
B.
尺寸
C.
形状
D.
定位
查看完整题目与答案
【单选题】Cancer should be considered to be a biological problem rather than a medical one because ______.
A.
viruses are known to cause cancer in animals
B.
at present, human cancer is not believed to be contagious (传染的)
C.
there are many known causes for the transformation of a normal cell to a cancer cell
D.
results of experiments on plants and animals do not vary greatly from species tn species
查看完整题目与答案
【判断题】The nitrogen atom in the compound below has a positive charge:
A.
正确
B.
错误
查看完整题目与答案