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【单选题】
下列离子的电子排布与氩原子核外电子层不同的是（ ）A.
Cl -
B.
S 2-
C.
K +
D.
Mg 2+
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皮皮学刷刷变学霸
举一反三
【单选题】关于气管的描述错误的是：
A.
气管为富有弹性、后壁略平的圆筒形管道。
B.
气管位于食管前方，上端在第 4 颈椎体下缘高度借韧带连于喉
C.
气管隆嵴，为气管镜检查的定为标志
D.
气管的后壁缺少软骨，由弹性纤维和平滑肌封闭，称膜壁
【单选题】关于气管的描述,错误的是
A.
在胸骨角平面分为左、右主支气管
B.
气管隆嵴偏向右侧
C.
气管切开术常在第3~5气管软骨环处进行
D.
气管的后部由膜壁封闭
E.
气管位于食管的前方
【单选题】How much may a tusk in good condition sell for?
A.
Exactly ＄2,000.
B.
Almost ＄2,000.
C.
Less than ＄2,000.
D.
＄2,000 or more.
【单选题】Why does the author mention the psychological condition of the driver in Paragraph 2?
A.
To give an example of the various reasons for road accidents.
B.
To show how important it is for drivers to be emotionally healthy.
C.
To show some of the inaccurate estimations by researchers.
D.
To illustrate the hidden tensions in the course of driving.
【单选题】What has left many L.A. murals in terrible condition?
A.
a. Pollution.
B.
b. Hot sun.
C.
c. Graffiti.
D.
d. All of the above.
【简答题】S1:MV Helper,this is MV Blue Whale.Are survivors in good condition? Over.S2:MV Blue Whale,this is MV Helper.Survivors in bad condition. Over.Q:What's the condition of the survivors?A. good. B. quite g...
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