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【判断题】
圆弧编程中的 I、J、K值和R值均有正负之分。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】It was back home after experiment.
A.
not until midnight did he go
B.
until midnight that he didn’t go
C.
not until midnight that he went
D.
until midnight when he didn’t
【单选题】It was __________________ back home from work.
A.
not until midnight did he go
B.
until midnight that he didn’t go
C.
not until midnight that he went
D.
until midnight when he didn’t go
【单选题】They had an accident on the road and didn’t ________ at their hotel until after midnight.
A.
check out
B.
check in
C.
check on
D.
check over
【多选题】关于克隆人技术说法正确的是【 】
A.
灵长目动物繁殖过程中对纺锤体组装的要求比其他哺乳动物“更为严格”
B.
治疗性克隆是利用胚胎干细胞克隆人体器官和组织,供医学研究和临床治疗使用。生殖性克隆就是指通常所说克隆人
C.
克隆人违背生命伦理原则,世界上绝大多数科学家、国际人类基因组伦理委员会和各国政府都明确表示反对。治疗性克隆能够解决人类器官移植治疗中紧缺的器官来源问题,对人类健康和医学研究具有重要意义
D.
中国政府和科学家观点是,反对克隆人,但不反对治疗性克隆的研究,主张将克隆技术应用于医学领域,为人民健康和医学研究服务
【单选题】Neighbors _________ to the police about the dogs barking at midnight, but it didn’t work.
A.
faced
B.
offered
C.
occurred
D.
complained
【单选题】患者，27岁。因交友情感受挫，自服农药，被同伴急送医院，护士为中毒者洗胃前先抽取胃内容物再行灌洗的主要目的是
A.
送检毒物测其性质
B.
减少毒物吸收
C.
防止胃管阻塞
D.
预防急性胃扩张
E.
防止灌入气管
【单选题】They had an accident on the road and didn't ______ at their hotel until after midnight. [ ]
A.
check out
B.
check on
C.
check in
D.
check over
【单选题】--- Why didn’t she ask for help at that time? --- You know, at such a midnight, there was no one ________.
A.
she could turn to
B.
for whom to turn
C.
who to turn to
D.
for her to turn
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