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【单选题】
正数的机器数等于其真值的码制有(12)。
A.
原码
B.
补码
C.
反码
D.
原码、反码、补码
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举一反三
【判断题】我国大陆境内第一家肯德基餐厅于1987年在北京前门商业街开设。
A.
正确
B.
错误
【单选题】下列选项中,函数名称命名错误的是( )。
A.
show
B.
const
C.
it_info
【单选题】Great changes_____in our province.Many tall buildings________.
A.
. have been taken place, have been set up
B.
. have taken place, have been set up
C.
. have  taken place, have  set up
D.
. were taken place, were set up
【单选题】034 用水合氯醛试液加热透化装片后,可观察
A.
淀粉粒
B.
多糖颗粒
C.
菊糖
D.
草酸钙结晶
E.
橙皮苷结晶
【单选题】There is a great concern in Europe and North America about declining standards of literacy in schools. In Britain, the fact that 30 percent of 16 year old have a reading age of 14 or less has helped t...
A.
they read too loudly
B.
there are too many repetitive words
C.
they are discouraged from using their imagination
D.
they have difficulty assessing its meaning
【多选题】What are the three great changes in the 16th and 17th century in Europe?
A.
Industrial Revolution
B.
Renaissance
C.
development of capitalism
D.
religious reformation
【多选题】关于主动脉瓣狭窄患者的麻醉,下列叙述正确的是()
A.
利用血管扩张药降低后负荷是有益的
B.
血压下降时可用血管收缩药维持安全的血压水平
C.
由于左心室的高动力,应鼓励使用吸人麻醉方法
D.
对心房退化或丧失窦性心律者应安置起搏器
E.
舒张压过分降低可以使用α受体激动剂和扩容治疗
【单选题】The 'News' in Education Education changes with time. Because of these changes, the face of education and access to education are different today. The most obvious change is that there are different th...
A.
Y
B.
N
C.
NG
【判断题】在纯电感电路中U/I=X L ,U m /I m =X L ,u/i≠ X L。( )
A.
正确
B.
错误
【单选题】下列关于主动脉瓣关闭不全引起周围血管征的叙述,正确的是( )
A.
有效循环血量增加,致水冲脉
B.
舒张期主动脉血液反流、脉压增大
C.
收缩试压升高幅度大于舒张压
D.
静脉压升高
E.
毛细血管扩张导致毛细血管搏动
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