A.The tiring journey to and from work also contributes to the working injuries.
B.A large number of workers in Great Britain are likely to get hurt at work because of too long working time.
C.Companies will initiate working safety programs very soon.
D.The 48-hour European Working Time Directive is to protect workers from unfair payment over long working hours.
第1题
某种有机物配成2mmol/L的水溶液,用0.5cm光径的比色杯测得吸光度为0.100,据公式A-sbc(A:吸光度;b:光径cm;c:浓度mol/L)计算其摩尔吸光系数ε为
A.20
B.100
C.200
D.400
E.1000
第2题
某种有机物配成2mmol/L的水溶液,用0.5cm光径的比色杯测得吸光度为0。100,据公式A-ebc(A:吸光度;b:光径cm;c:浓度mol/L)计算其摩尔吸光系数e为
A.20
B.100
C.200
D.400
E.1 000
第3题
A.20
B.100
C.200
D.400
E.1000
第4题
A.100
B.200
C.50
D.0.2
E.10
第6题
A.100
B.200
C.50
D.0.2
E.10
第7题
A.100
B.200
C.50
D.0.2
E.10
第8题
A.0.2
B.10
C.50
D.100
E.200
第9题
A.100
B.200
C.50
D.0.2
E.10
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