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搜题
【单选题】
遇险通信遇险通信频率应 _____确定 ?
A.
根据遇险呼叫电文的后续通信方式确定随后通信方式
B.
选择与DSC呼叫频率同波段的遇险通信专用频率
C.
A+B
D.
可随意选择
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【单选题】下列存储器中,存储速度最快的是( )。
A.
光盘
B.
内存储器
C.
U盘
D.
硬盘
【单选题】在关机后()中存储的内容就会丢失.
A.
ROM
B.
RAM
C.
EPROM
D.
硬盘数据
【单选题】下列存储器中,存储速度最快的是
A.
软磁盘存储器
B.
硬磁盘存储器
C.
光盘存储器
D.
内存储器
【单选题】下列存储器中,存储速度最快的是()
A.
内存储器
B.
U盘存储器
C.
硬盘存储器
D.
光盘存储器
【判断题】理论塔反数可以用来衡量色谱柱的柱效。( )
A.
正确
B.
错误
【单选题】Suppose a country has been running a persistent government budget deficit. If the deficit is reduced, but remains positive,
A.
government debt will increase.
B.
government debt will decrease.
C.
the country will experience a budget surplus.
D.
interest payments on the debt immediately will decrease.
【单选题】Suppose a country is producing $20 million of real GDP. If the economy grows at 10 percent per year, approximately how many years will to take for real GDP to grow to $80 million?
A.
14
B.
7
C.
4
D.
30
【单选题】Suppose a country is much richer than the others in the Solow growth model. What happens in the long run?
A.
The other countries catch up to the rich one.
B.
The rich country grows the fastest.
C.
The rich country becomes poorer than the others.
D.
Nothing.
【单选题】Suppose a country is producing $20 million of real GDP. If the economy grows at 10 percent per year, approximately how many years will to take for real GDP to grow to $80 million?
A.
14.00
B.
7.00
C.
4.00
D.
30.00
【单选题】液压缸浮动应选用 型中位机能的换向阀。
A.
O
B.
H
C.
M
D.
P
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