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【多选题】
马拉太太教小鸭子们做什么事?(多选)
A.
游泳和潜水
B.
排成一行走路
C.
听到呼唤立刻过来
D.
跟自行车、摩托车及其他有轮子的东西保持安全距离
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举一反三
【单选题】When the speaker finished his speech, he was affected to see his speech ________ with cheers and applauses from the audience. [     ]
A.
was met
B.
was welcome
C.
was popular
D.
was greeted
【多选题】露天矿生产的辅助工序包括( )
A.
防排水
B.
通风
C.
采装
D.
排土
【判断题】This speech has an impact in his later life.()
A.
正确
B.
错误
【简答题】勤勉の意味は
【单选题】— Didn't bob get ready for his English speech? — No, he didn't. During his speech, he was very _____. [     ]
A.
excited
B.
womed
C.
nervous
D.
confident
【简答题】红十字会统计本月应付工资明细款,期中管理人员工资8080元,从事服务活动人员工资5650元。 借:______ 8080 ______ 5650 贷:应付工资 13730
【单选题】当二极管外加正向电压较小时,正向电流几乎为零,此时二极管处于 ( )。
A.
. 截止区
B.
. 死区
C.
. 导通区
D.
. 闭合区
【单选题】与链轮传动相比,带传动的优点是
A.
工作平稳,基本无噪声
B.
承载能力大
C.
传动效率高
D.
使用寿命长
【简答题】The mayor was asked to ________ his speech in order to allow his audience to raise questions. A) constrain B) conduct C) condense D) converge
【简答题】简述烟熏痕迹的提取方法。
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