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【简答题】
  At the G7 summit in Quebec, President Trump has criticized Canada, the EU and France for charging what he called massive tariffs. The row over trade is becoming increasingly acrimonious since Mr. Trump announced tariffs on 1) ______________. President Macron, France said earlier that 2)__________________ together represented an economic market which3)________________. The US Secretary of State says Kong Jong-un has indicated to him personally that North Korea is prepared to denuclearize. Mike Pompeo has said both sides were 4)._______________________________before the world denuclearization implied. The US government has for the first time begun using federal prisons to host people suspected of being illegal immigrants. The transfer of 5).___________ is part the president's plan to6)__________________. The International Monetary Fund has reached the deal with Argentina for7)____________________. Argentina has agreed to cut public spending and reduce inflation. The State of Victoria in Australia has taken the first step towards signing a treaty with its aboriginal peoples. It is the first time any Australian Parliament has passed laws that create a framework for a future of accord with8)_________________. The Upper House of parliament in Canada has approved the law allowing the recreational use of marihuana. Senators9)_______________________ which the House of Commons will have to decide on before the law can be passed. And the British Foreign Secretary Boris Johnson has warned his supporters that10)______________________ are reaching a moment of truth and there is a risk that they may not get the deal they wanted. In a secret recording obtained by Buzzfeed News, Mr. Johnson said he believed 11)_____________________but added Britain could end up locked in orbit around the EU.
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【单选题】静脉滴注去甲肾上腺素,血压升高的主要机制是( )
A.
加强心肌收缩力
B.
血管收缩,增加外周阻力
C.
增加心率
D.
加速血液回流
【单选题】下面哪一条不属于变角度空间桁架模型的基本假定:( )。
A.
混凝土只承受压力
B.
平均应变符合平截面假定
C.
纵筋和箍筋只承受拉力
D.
忽略核心混凝土的受扭作用和钢筋的销栓作用
【单选题】下列关于SRAM工作原理的描述中 , 错误 的是( )
A.
6管SRAM中保存“1"的存储单元有两个工作管处于饱和导通状态
B.
对任何一个SRAM存储单元的读写,一定需要通过对应的行选通和列选通信号使与该存储单元对应的4个门控管都处于选通状态
C.
现有一个1KB的SRAM存储器,若只使用其低端地址的前16个单元,则只要使用该存储器的前4位地址线,其余地址线可以不做任何端接处理
D.
6管SRAM中保存“0"的存储单元有两个工作管处于饱和导通状态
【判断题】有丝分裂间期的细胞核可分为核膜、核仁和核质三部分
A.
正确
B.
错误
【判断题】一般主存采用高速的SRAM制作。
A.
正确
B.
错误
【单选题】静脉滴注去甲肾上腺素,血压升高的主要机制是 ( )
A.
加强心肌收缩力
B.
增加心率
C.
血管收缩,增加外周阻力
D.
加速 血液回心
【多选题】台湾、香港、澳门问题的性质( )
A.
都是国际关系问题
B.
台湾问题时内政问题
C.
都是内政问题
D.
香港、澳门是殖民地遗留问题
【单选题】Pentium4处理器中的cache是用SRAM组成的,其作用是( )
A.
提高数据存取的安全性 B:扩大主存储器的容量
B.
扩大主存储器的容量
C.
发挥CPU的高速性能
D.
提高CPU与外部设备交换数据的速度
【简答题】SRAM的作用
【判断题】贝内特先生一方面喜欢插科打诨,爱挖苦人,同时又不苟言笑,变幻莫测。
A.
正确
B.
错误
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