问题
单项选择题
根据《制革、毛皮工业污染防治技术政策》,严格禁止使用在国际上禁用的含致癌芳香胺基团的染料,使用新型复鞣、加脂材料,提高皮革对加脂剂的吸收;( )。
A.慎用能促进三价铬氧化为六价铬的富含双键的加脂剂
B.禁止用能促进三价铬氧化为六价铬的富含双键的加脂剂
C.慎用能促进三价铬氧化为六价铬的富含三键的加脂剂
D.禁止用能促进三价铬氧化为六价铬的富含三键的加脂剂
答案
参考答案:A
根据《制革、毛皮工业污染防治技术政策》,严格禁止使用在国际上禁用的含致癌芳香胺基团的染料,使用新型复鞣、加脂材料,提高皮革对加脂剂的吸收;( )。
A.慎用能促进三价铬氧化为六价铬的富含双键的加脂剂
B.禁止用能促进三价铬氧化为六价铬的富含双键的加脂剂
C.慎用能促进三价铬氧化为六价铬的富含三键的加脂剂
D.禁止用能促进三价铬氧化为六价铬的富含三键的加脂剂
参考答案:A
Scientists say they have found key clues(线索)into how long we will live. One of them is a firm __21___. British researchers believe a firm strong handshake is not just a __22___ of confidence but also an indicator of a long life. Lead author Dr Rachel Cooper of University College London said her study looked __23___ 33 different reports on the __24___ of handshakes. The research involved more than 50,000 men and women and __25___ 40 years. Dr Cooper concluded that __26___ with weaker handshakes were 70 per cent more likely to die earlier than those with the __27___ handshakes. She concludes that people with a firm strong handshake __28___ from a happy childhood that __29___ a healthy diet and __30___ of exercise. The new study, __31___ in the British Medical Journal, also found other signs of living a longer life. These 'measures of __32___ capability' include walking at a faster pace, getting out of a chair quickly, and being able to __33___ on one leg. The study showed that slow walkers were almost three times __34___ to die at a younger age than those who walked quickly and actively. Those who __35___ to get up from their armchairs were twice as likely to die earlier than those who sprang __36___ their chairs. Dr Cooper believes there __37___ more research into the link __38___ physical capability and a long life. “Research that helps people to __39___ a long and healthy life is ever more important to help provide for an ageing __40___.” she said.
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