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【判断题】
When select reading materials for our students, teachers should ensure not only there is a greater variey but also teachers can help prepare students to meet their future needs.A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【简答题】请将罗马字改写为平假名。 natu(__)
【单选题】Which of the following statements is NOTtrue, according to the article?
A.
Natural gas comes partly from Canadian fields.
B.
Bottled gas is more expensive than utilitygas.
C.
Equipment for home heating has been considerablyimproved.
D.
Solar heating dominated America in 2000.
【单选题】关于胆色素的叙述，正确的是（）
A.
是铁卟啉化合物的代谢产物
B.
血红素还原成胆红素
C.
胆红素还原变成胆绿素
D.
胆素原是肝胆红素在肠道细菌作用下与乙酰CoA形成的
E.
胆红素与胆色素实际是同一物质，只是环境不同，而有不同命名
【单选题】Steel works are encouraged to purchase ______ iron so as to reduce the consumption of natural resources.
A.
scrap
B.
scrape
C.
scratch
D.
snap
【简答题】西文字符在计算机中通常采用ASCII码表示,每个字节存放 个字符。
【单选题】关于胆色素的叙述,正确的是( )
A.
胆红素与胆色素实际是同一物质,只是环境不同,而有不同命名
B.
是铁卟啉化合物的代谢产物
C.
胆素原是肝胆红素在肠道细菌作用下与乙酰CoA形成的
D.
血红素还原成胆红素
E.
胆红素还原变成胆绿素
【单选题】Man and Nature The balance of nature is a delicate system of checks and counterchecks. Nature has its own way of checking the life and distribution of the different organisms and helping their growth....
A.
Y
B.
N
C.
NG
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