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【多选题】
Which of the following are true about Chinese martial arts?
A.
The continuously slight shaking always appears in performance with steady rhythm.
B.
In many Chinese martial arts, meditation is considered to be an important component of basic training.
C.
Philosophy, ethics and even medical practice are highly regarded by most Chinese martial arts.
D.
Chinese martial arts has become an athletic and aesthetic performance and competitive sport.
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举一反三
【单选题】自动电渣压力焊设备包括焊接电源、控制箱、( )和焊接机头等。
A.
操作箱
B.
焊接夹具
C.
焊接变位器
D.
焊接小车
【简答题】请大家将下面一段话翻译成中文 Plastic surgery has long been big business in the US, but now the trend is sweeping across Asia. Figuresreleased by the International Society of Aesthetic Plastic Surgery (ISAPS), su gg...
【单选题】衰老是指机体从性成熟后开始或加速的一种持续发展且不可逆转的过程。 根据上述定义,下列选项中属于衰老的是( )。
A.
老年人身高下降,脊柱弯曲,皮肤松弛,须发脱落
B.
某干部退休后,睡眠不好,情绪烦躁,不愿与人交往
C.
某青年原本活泼好动,热情奔放,但因学业繁重而郁郁寡欢
D.
某工人因长期在噪音环境下工作,导致听觉能力下降
【判断题】转矩方程中T1为原动机的驱动转矩,Te为电磁转矩,TO为空载转矩。
A.
正确
B.
错误
【判断题】对发动机热力过程进行简化时,需要将发动机热力过程当做准稳态过程处理,是指忽略气缸内部的不可逆因素,认为在任意时刻气缸各点的工质状态都相同。
A.
正确
B.
错误
【单选题】不可逆热机是指______。
A.
完成不可逆过程的热机
B.
有热量交换的热机
C.
完成不可逆循环的热机
D.
有功量交换的热机
【判断题】自动钢筋电渣压力焊设备包括焊接电源、控制箱、操作箱和焊接机头等。
A.
正确
B.
错误
【判断题】叶轮式压气机的绝热效率是指定熵压缩过程耗功比上实际不可逆绝热压缩过程的耗功。( )
A.
正确
B.
错误
【单选题】Which of the following is NOT true according to the passage?
A.
Australia lies between the Pacific Ocean and the Indian Ocean.
B.
Australia is the larges island in the world but the smallest continent.
C.
The Pacific Ocean is mainly in the south and west of Australia.
D.
The Pacific Ocean is larger than the Indian Ocean.
【简答题】Channel Islands tourist guide Friendly communities, a rough coastline and gentle, untouched scenery make the islands ideal for anyone who wants to ‘get out there’ and explore on foot or by bike. Engla...
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