更多“戊戌变法是中国近代史上一次重要的政治改革，也是一次思想启蒙运”相关的问题
编码某一氨基酸的密码子突变成了终止密码,该突变类型是( )。(了解, 难度:0.9,区分度:0.8)
A . 同义突变B . 错义突变C . 无义突变D . 终止密码突变E . 移码突变
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64位加密的无线路由器需要输入（）个字符作为加密密码。
A、8
B、10
C、16
D、26
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A．有效期B．规格C．产品批号D．执行标准原料药标签的内容不包括
A．
B．
C．
D．
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（)would you like, tea or coffee？A. HowB. WhyC. What
()would you like, tea or coffee？A. HowB. WhyC. What
A. HowB. WhyC. What
B. WhyC. What
C. What
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车辆计划维修指车辆定期或按走行公里数进行的各等级定期预防性维修有（）。
A.日检
B.双周检
C.三月检
D.年检
E.架修
F.大修
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（）穴是在脐下3寸处。
A.关元 B.上脘 C.中脘 D.下脘
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下列哪部脑具有节制呼吸，消化，循环，汗腺分泌及各种防御反射等内脏活动的低级中枢（）
A.间脑
B.中脑
C.小脑
D.延脑
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以下哪个循环打印“Welcome to Python”10次 A: for count in range（）
A.BD
B.ABC
C.AC
D.BC
E.AB
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Most Americans would agree, one of the United States’ most pressing social problems is the breakdown of the two-parent family. Today, millions of American children grow up without fathers, often in poverty. Too often, these children lack the love and guidance they desperately need -- and which they would ordinarily receive from two responsible parents. Traditionally, American parents have placed the needs of their children above their own, often delaying their own gratification (享受) or sacrificing material comforts in the interests of their children’s future. At present, however, nearly one half of all new marriages end in divorce, with often troubling consequences for the children involved. Worse, every year, thousands of teenage, unmarried Americans become mothers outside the context of wedlock (婚姻) altogether, with generally disastrous results for the mothers and children alike and for American society more generally. In refreshing contrast, Chinese continue to value intact marriages. This is not to say that Chinese marriages are all perfect -- they certainly are not, judging from increasing rates of divorce and extramarital (婚外的) affairs -- but the willingness of Chinese to set aside their own needs and stay together for the sake of the children is admirable and worthy of study.
A. Indifferent. B. Ironic. C. Critical. D. Admiring.
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Windows 98的注册表中存储了系统的所有配置数据，用户可以通过“注册表编辑器”查看或编辑注册表中的信息。如果要启动“注册表编辑器”，用户必须在“运行”对话框中输入并执行命令______。
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在进行仪表累积清零操作时，应首先进行清零，再按下（），此时累积流量闪烁、按下确认键，则累积流量被清零。
A.压力键
B.密度键
C.流量键
D.取消键
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水泵的提水高度叫做扬程。一般将水泵进出水池的水位差称为“净扬程”，水流出管道的水头损失成为损失扬程。一般喷泉的损失扬程可粗略地取净扬程的30%~50%。
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畜禽屠宰经营者应当在畜禽屠宰时回收畜禽标识，由（）保存、销毁。A.畜牧兽医管理部门B.动物卫生监督
畜禽屠宰经营者应当在畜禽屠宰时回收畜禽标识，由（）保存、销毁。 A.畜牧兽医管理部门 B.动物卫生监督机构 C.动物疫病预防控制中心 D.屠宰场
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