Heads of State, Prime Ministers and Ministers of Environment deliver statements and commit themselves to care for the Earth. World Environment Day, commemorated each year on 5 June is one of the principal vehicles through which the United Nations stimulates worldwide awareness of the environment and enhances political attention and action. The World Environment Day theme selected for 2007 is "Melting Ice—a Hot Topic?" The WED theme selected for 2007 focuses on the effects of climate chan4ge on the polar environment and on the globe in the whole.
The main international celebrations of the World Environment Day 2007 were held in Norway. UNEP is honored that the City of Troms is to host this day.
The day's agenda is to ask human beings to face to environmental issues; empower people to become active agents of sustainable and equitable development; promote an understanding that communities are important to changing attitudes towards environmental, issues; and advocate partnership, which will ensure all nations and peoples enjoy a safer and more prosperous future.
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A.In 1992.
B.In 2000.
C.In 2004.
D.In 1972.
第2题
苷类可经酶催化水解,α-葡萄糖苷键可被下列哪种酶水解
A.纤维素酶
B.苦杏仁酶
C.麦芽糖酶
D.转化糖酶
E.以上均是
第4题
下列酶中,能够水解α-葡萄糖苷键的酶是
A.苦杏仁酶
B.纤维素酶
C.麦芽糖酶
D.蜗牛酶
E.转化糖酶
第5题
水解α-葡萄糖苷键,可采用
A.转化糖酶
B.麦芽糖酶
C.纤维素酶
D.杏仁苷酶
E.以上都不是
第6题
下列酶中,能够水解α-葡萄糖苷键的酶是
A.苦杏仁酶
B.纤维素酶
C.麦芽糖酶
D.蜗牛酶
E.转化糖酶
第7题
下列酶中,能够水解α-葡萄糖苷键的酶是()。
A.苦杏仁酶
B.纤维素酶
C.麦芽糖酶
D.蜗牛酶
E.转化糖酶
第8题
下列酶中,能够水解α-葡萄糖苷键的酶是
A.苦杏仁酶
B.纤维素酶
C.麦芽糖酶
D.蜗牛酶
E.转化糖酶
第9题
下列酶中,能够水解α-葡萄糖苷键的酶是
A.苦杏仁酶
B.纤维素酶
C.麦芽糖酶
D.蜗牛酶
E.转化糖酶
第10题
下列酶中,能够水解α-葡萄糖苷键的酶是
A.苦杏仁酶
B.纤维素酶
C.麦芽糖酶
D.蜗牛酶
E.转化糖酶
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