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【单选题】
组成蛋白质、糖类、脂类的共同元素是
A.
碳、氢、氧 、氮
B.
碳、氢、氧
C.
碳、氢、氧、氮、硫
D.
碳、氢、氧、氮、磷
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参考答案:
举一反三
【单选题】What does a Super Bowl party mean to Bill?
A.
It is a grand party held every year to celebrate the event of Super Bowl.
B.
It is a party held in honor of those who have won the Super Bowl.
C.
It is a party where friends gather together and watch the Super Bowl game.
D.
It is a party where sports fans gather together and make new friends.
【单选题】汽车换用其他汽油牌号时,由低牌号汽油换用高牌号汽油时,应( )点火提前角。
A.
提前
B.
推迟
C.
不变
D.
都可以
【单选题】.先天性心脏病病因中最主要是由于
A.
遗传
B.
妊娠早期服用药物
C.
接触大剂量放射线
D.
孕母患代谢紊乱性疾病
E.
宫内感染
【单选题】先天性心脏病病因中最主要是由于
A.
遗传因素
B.
妊娠早期服用药物
C.
接触大剂量放射线
D.
孕母患代谢紊乱性疾病
E.
宫内感染
【单选题】低号牌汽油换用高号牌汽油时,点火提前角
A.
提前
B.
推迟
C.
不变
D.
都可以
【单选题】先天性心脏病病因中最主要是由于
A.
遗传
B.
宫内感染
C.
接触大剂量放射线
D.
孕母患代谢紊乱性疾病
E.
妊娠早期服用药物
【单选题】You should ______ that he had been in bad health these days. He could do much better if he were well.
A.
take into account
B.
account for
C.
take for granted
D.
count on
【判断题】当由低牌号汽油换用高牌号汽油时,应适当提前点火提前角;而当由高牌号汽油换用低牌号汽油时,应适当推迟点火提前角。
A.
正确
B.
错误
【简答题】He meant to take the next train to the place that he had been keen on, which meant staying here another night. 2. In spite of the fact that the police had warned them of the er in the ancient cave...
【判断题】一年中有12个月,这种计数方式属于十二进制。
A.
正确
B.
错误
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