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【多选题】
錾削时,下列说法正确的是( )。
A.
时由于手指.手腕.肘部动作不协调,造成锤击力小,操作易疲劳
B.
手锤锤击的作用方向与錾子轴线不一致,使手锤偏离錾子,容易敲到手上
C.
锤击不靠腕.肘的挥动,而单纯用手臂向前推,造成动作不自然,锤击力也小
D.
站立位置和身体姿不正确,而使身体向前弯
E.
锤击时过于紧张使面部出现各种不自然的表情
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A.
正确
B.
错误
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A.
A fall in domestic income automatically reduces the earnings of foreign shareholders without violating any loan agreement.
B.
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C.
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D.
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E.
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A.
不是
B.
C.
不确定
D.
不熟悉
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A.
Right
B.
Wrong
C.
Doesn't say
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