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核糖核酸酶与脱氧核糖核酸酶分别作用于RNA与DNA中的磷酸二酯键，均属于特异性的磷酸二酯酶。(    )
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参考答案：
举一反三
【单选题】打开PowerPoint 2010后,系统默认创建一个文件,下列哪个是其默认文件名?
A.
演示文稿.ppt
B.
文档1.doc
C.
演示文稿.pptx
D.
文档1.docx
查看完整题目与答案
【单选题】To Tom's _____, he could pass the math test this time. [     ]
A.
surprise
B.
surprised
C.
surprising
D.
surprises
查看完整题目与答案
【单选题】If Tom ________ the game, we'll give him a surprise.
A.
win
B.
wins
C.
won
D.
winning
查看完整题目与答案
【单选题】通过干燥工艺获得的生物制品其含水量一般为( )
A.
0.2-1%
B.
1-5%
C.
5-12%
D.
12-15%
查看完整题目与答案
【单选题】If Tom _____ the game, we’ll give him a surprise'.
A.
win
B.
wins
C.
won
D.
miming
查看完整题目与答案
【单选题】“亲，销售完350亿元的商品需要多长时间？天猫11·11购物狂欢节给出的答案是：24个小时”。2013年11月11日，又是电子商务的狂欢日。淘宝天猫双十一促销的支付宝总销售额350亿。网络购物不仅受到消费者的青睐，而且带动了我国经济的发展。网络购物（）①拓展了货币的基本职能②意味着货币的本质发生了变化③改变了商品交换的方式④会促进商品流通成本的降低
A.
①②
B.
①③
C.
②④
D.
③④
查看完整题目与答案
【简答题】静定梁的三种基本形式 、 、 。
查看完整题目与答案
【单选题】To Tom's surprise, he was the only of his uncle's will(遗嘱).
A.
beneficial
B.
beneficiary
C.
benefit
D.
benefiting
查看完整题目与答案
【单选题】Woman: I don't think we should have told Tom about the surprise party for Lucy. Man: It's all right. He promised not to tell, and he doesn't make promises lightly. Question: What does the man mean?
A.
Tom has arranged a surprise party for Lucy.
B.
Tom will keep the surprise party a secret.
C.
Tom and Lucy have no secrets from each other.
D.
Tom didn't make any promise to Lucy.
查看完整题目与答案
【单选题】To Tom’s surprise, he was the only ________ of his uncle’s will.
A.
cozy
B.
beneficiary
C.
paradise
D.
divorce
查看完整题目与答案
相关题目：
【单选题】打开PowerPoint 2010后,系统默认创建一个文件,下列哪个是其默认文件名?
A.
演示文稿.ppt
B.
文档1.doc
C.
演示文稿.pptx
D.
文档1.docx
查看完整题目与答案
【单选题】To Tom's _____, he could pass the math test this time. [     ]
A.
surprise
B.
surprised
C.
surprising
D.
surprises
查看完整题目与答案
【单选题】If Tom ________ the game, we'll give him a surprise.
A.
win
B.
wins
C.
won
D.
winning
查看完整题目与答案
【单选题】通过干燥工艺获得的生物制品其含水量一般为( )
A.
0.2-1%
B.
1-5%
C.
5-12%
D.
12-15%
查看完整题目与答案
【单选题】If Tom _____ the game, we’ll give him a surprise'.
A.
win
B.
wins
C.
won
D.
miming
查看完整题目与答案
【单选题】“亲，销售完350亿元的商品需要多长时间？天猫11·11购物狂欢节给出的答案是：24个小时”。2013年11月11日，又是电子商务的狂欢日。淘宝天猫双十一促销的支付宝总销售额350亿。网络购物不仅受到消费者的青睐，而且带动了我国经济的发展。网络购物（）①拓展了货币的基本职能②意味着货币的本质发生了变化③改变了商品交换的方式④会促进商品流通成本的降低
A.
①②
B.
①③
C.
②④
D.
③④
查看完整题目与答案
【简答题】静定梁的三种基本形式 、 、 。
查看完整题目与答案
【单选题】To Tom's surprise, he was the only of his uncle's will(遗嘱).
A.
beneficial
B.
beneficiary
C.
benefit
D.
benefiting
查看完整题目与答案
【单选题】Woman: I don't think we should have told Tom about the surprise party for Lucy. Man: It's all right. He promised not to tell, and he doesn't make promises lightly. Question: What does the man mean?
A.
Tom has arranged a surprise party for Lucy.
B.
Tom will keep the surprise party a secret.
C.
Tom and Lucy have no secrets from each other.
D.
Tom didn't make any promise to Lucy.
查看完整题目与答案
【单选题】To Tom’s surprise, he was the only ________ of his uncle’s will.
A.
cozy
B.
beneficiary
C.
paradise
D.
divorce
查看完整题目与答案
参考解析：
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