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【单选题】
属于“触电事故”预防措施的是（）。A.
接触电器带绝缘手套
B.
对触电者进行现场急救
C.
建立电气设备台账
D.
制定触电事故应急救援预案
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【单选题】How can we reduce the moment of inertia?
A.
raise transmision stiffness
B.
choose the best transmission ratio
C.
use transmission parts with low friction
D.
eliminate the clearance of transmission chain
【多选题】How can we reduce the unbalance hydraulic radial force on the gear shafts for gear pump?
A.
Enlarge the area of the outlet port
B.
Reduce the area of the outlet port
C.
Reduce the area of the inlet port
D.
Set balancing grooves
【简答题】How can we reduce the quantity demanded for cigarettes?
【简答题】水在液压油中含量过多造成的危害不包括_________。A. 使金属锈蚀B. 油氧化加快C. 执行机构动作迟滞D. 油乳化变质
【简答题】案例 利用备用信用证追回欠款案 案情 ×年4、5月间，我某外贸进出口公司(卖方)在偶然的机会中与某贸易发展有限公司(买方)分别签订了五份出口销售合同。合同总金额为65万多美元，付款方式全都是见票付款托收方式(D/P at sight on collect basis)。×年6月初，前四批货物分两批陆续从上海港装船发出，运到目的港。卖方也陆续分两次将四套总价值为45万美元的托收单据通过中国银行...
【单选题】How can we reduce the amount of carbon we use up? ( )
A.
Drive gas-guzzling vehicles.
B.
Take aeroplanes to go on holiday.
C.
Buy locally grown food.
D.
Take public transport.
【单选题】How can we reduce the amount of carbon we use up? ( )
A.
Drive gas-guzzling vehicles.
B.
Take aeroplanes to go on holiday.
C.
Buy locally grown or produced food.
D.
Drive cars as much as possible.
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