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【单选题】
有关地球外部圈层的说法，正确的是A.
大气圈的质量、体积最小
B.
水圈是一个连续不规则的圈层
C.
生物圈包括大气圈的底部、水圈的上部
D.
在地球附近表面，各圈层相互平行
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举一反三
【单选题】( ) 6. — I want to return the book to Jack, but I can ’ t find him. — He _______ the library. You can find him there.
A.
has been to
B.
has gone to
C.
has left
【单选题】甲状腺功能减退的面容是
A.
面色苍白,表情疲惫
B.
面色苍白,颜面水肿,目光呆滞
C.
面色灰褐,额部有褐色色素沉着
D.
面容惊愕,目光闪亮
E.
眉毛、头发稀疏,反应迟钝
【单选题】关于XJE05型经纬仪的放球指示灯,以下说法正确的是( )。
A.
灯闪烁表示开始放球
B.
灯闪烁表示系统处于观测状态
C.
灯不闪烁说明经纬仪无法观测数据
D.
灯不闪烁说明系统故障
【简答题】Many people like to travel by plane, but I don' t like it. As we know, an airport is usually 1 from the city and it usually takes you much time to get there. You have to get to the airport 2 and wait ...
【简答题】安装闸刀开关时应注意什么问题?
【单选题】甲状腺功能减退的面容是( )
A.
面色苍白,表情疲惫
B.
面色苍白,颜面水肿,目光呆滞
C.
面色灰褐,额部有褐色色素沉着
D.
面容惊愕,目光闪亮
E.
表情淡漠,反应迟钝
【多选题】七选五 True friends are rare to come by these days.Even if you believe you ’ ve connected with someone , __1.__ ? And often you will find that someone who you thought you could trust may have let you dow...
B.
. How often does he let you down
C.
. as if they could offer you great help
D.
. you must in turn be the same as well
E.
. it will be stronger and better than ever
F.
. how do you really know he is a true friend
G.
. even if they may not have advice to share with you (5.0分)
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