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【单选题】
如图12所示,该轴需进行 ( ) 热处理。A.
淬火
B.
正火
C.
退火
D.
调质
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【单选题】Not until I reminded him for the third time_____working and looked up.
A.
that he stopped
B.
does he stop
C.
did he stop
D.
did he stopped
【单选题】The Value of Writing Well It's that time of year again. No, not 'the holiday season'. I mean, it is holiday time, but for professors it doesn't start feeling like holiday time until final grades are i...
A.
had nothing to do with gift
B.
was attributed to tough training
C.
was a born talent
D.
made him well-known
【简答题】다음을 읽고 물은에 답하십시오. 오늘은 서울광장에 갔습니다. 길이 많이 막혀서 지하철을 탔습니다. 우리는 신사역에서 3호선을 타고 을지로3가역에서 2호선으로 갈아탔습니다. 그리고 두 정류장을 가서 시청역에서 내렸습니다. 서울광장에서 사진 전시회를 봤습니다. 한국의 지하철은 매우 복잡하지만 참 편리합니다.
【多选题】在 After Effects 中如何预览电影 ?
A.
用鼠标指针在Time Layout 面板中的标尺上擦抹
B.
在 Time Controls 面板中点按Play 钮
C.
用 Composition/Preview 命令来控制
D.
点按 Composition 视窗底部的三角按钮
【简答题】园艺植物育种的主要目标有:高产稳产、 、 、 、 。
【多选题】中止导游活动，是指在导游过程中，擅自中止导游活动的行为。一般来说，构成中止导游活动必须具备以下条件（）
A.
必须在导游活动结束之前
B.
必须是擅自中止
C.
必须是彻底中止
D.
必须征得游客的同意
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