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【单选题】
味精的学名是( )。
A.
谷氨酸钠
B.
琥珀酸二钠
C.
5'-鸟苷酸二钠
D.
天门冬氨酸钠
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【简答题】补全对话 —Debbie! S can't believe it! I haven't seen you for years. —Dorothy! It's really a nice surprise! 小题1: —Pretty good. — 小题2: —I wish ! could, but I'm on my way out.I have to be in the city in an h...
【单选题】The beauty of     nature shocked the trave11ers, and many of them have got     new experience from the travel.
A.
×、×
B.
the, a
C.
the、×
D.
×、a
【多选题】肾上腺素:
A.
常用于预防支气管哮喘的发作
B.
可松弛支气管平滑肌
C.
抑制肥大细胞释放过敏性物质
D.
使支气管粘膜血管收缩
E.
激动支气管平滑肌β1受体
【单选题】Dorothy Crowfoot Hodgkin When Dorothy Crowfoot Hodgkin was ten years old, she watched her first crystals form. on a string dangling in a glass of salt water. Many children before and since have done t...
A.
Testing out the structures of penicillin
B.
Testing out the structures of vitamin B12
C.
Determining the arrangement of the atoms in a crystal
D.
Firing x-rays through a crystal
【单选题】预防过敏性哮喘可选用( )
A.
色甘酸钠
B.
异丙托溴胺
C.
地塞米松
D.
氨荼碱
E.
沙丁胺醇
【单选题】Dorothy Crowfoot Hodgkin When Dorothy Crowfoot Hodgkin was ten years old, she watched her first crystals form. on a string dangling in a glass of salt water. Many children before and since have done t...
A.
Testing out the structures of penicillin
B.
Testing out the structures of vitamin B12
C.
Determining the arrangement of the atoms in a crystal
D.
Firing x-rays through a crystal
【单选题】预防过敏性哮喘发作宜首选
A.
异丙肾上腺素
B.
肾上腺素
C.
氨茶碱
D.
色甘酸钠
E.
可待因
【单选题】预防过敏性哮喘发作可选用
A.
氨茶碱
B.
克仑特罗
C.
异丙阿托品
D.
色甘酸钠
E.
异丙肾上腺素
【多选题】关于肾上腺素正确的是
A.
常用于预防支气管哮喘的发作
B.
可松弛支气管平滑肌
C.
抑制肥大细胞释放过敏性物质
D.
使支气管黏膜血管收缩
E.
激动支气管平滑肌βl受体
【单选题】More highways have been built in China,___________it much easier for people to trave form one place to another.
A.
making
B.
made
C.
to make
D.
having made
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