正确答案: C

通济渠

题目：隋唐时期，淮水以北新增的有利于农田灌溉的水利工程是

解析：C

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举一反三的答案和解析：

[单选题]EFear plays no part in this latest problem．“I’m not afraid I'll lose my children．I won't lose my children. We live together, and nothing, nothing,”she repeats, her voice rising when speaking to John's lawyer, “will stop me from being with my children. A law? Year, right. Don't disturb me when it comes to my children. You are never going to win. If John wants to see them, I cannot stop him. He's their father­­—I want them to see him! However, his visit in his present condition will disturb the children's stable (稳定的) life．”

can’t take her children away from her

[单选题]毛茛属植物具( )。

聚合瘦果

[单选题]松属植物胚胎发育的( )出现多胚现象。

胚胎选择阶段

[单选题]BThree years ago, five parrots were set free in a wild place of Arizona, thousands of miles from the Channel Islands in Jersey where they had been looked after by zookeepers. No evolutionary strategies informed them how to behave in this new landscape of mountainous pine forest unoccupied by their kind for 50 years. To the researchers’ surprise, they failed to make contact with a group of wild parrots imported from Mexico and set free at the same time. Within 24 hours the reintroducing ended in failure, and the poor birds were back in cages, on their way to the safety of the Arizona reintroduction programme.

It used to be home to parrots of their kind.

[单选题]树皮中的外树皮全是死组织，内树皮主要是活组织。( )

正确

[单选题]下列各句中，没有语病、句意明确的一句是(3分)

我市高新区不断完善以市场为导向、以企业为主体、产学研结合的技术创新体系，积极参与“合芜蚌自主创新综合配套试验区”的建设。