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【简答题】
国民生产总值是衡量一国经济实力的重要指标,而我国的国民生产总值都是以多少亿元人民币来计算的,既然这样,为什么不大量印制人民币来增加我国的国民生产总值呢?( )
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皮皮学刷刷变学霸
举一反三
【单选题】异丙肾上腺素平喘作用的机制主要是()
A.
激活鸟苷酸环化酶,增加平滑肌细胞内cGMP浓度
B.
抑制腺苷酸环化酶,降低平滑肌细胞内cAMP浓度
C.
抑制鸟苷酸环化酶,降低平滑肌细胞内cGMP浓度
D.
激活腺苷酸环化酶,增加平滑肌细胞内cAMP浓度
E.
直接松弛支气管平滑肌
【单选题】Sun Hotel and Rose Hotel are open for______ months of the year.
A.
nine
B.
ten
C.
eleven
D.
twelve
【单选题】The boy said that the sun _____ in the east. [     ]
A.
rose
B.
rise
C.
rises
D.
rised
【判断题】1M Ω=1000KΩ。
A.
正确
B.
错误
【简答题】在下图所示放大电路中,已知U CC =24V,R B =1MΩ,R E =27kΩR B1 =82kΩ,R B2 =43kΩ,R E1 =510Ω,R E2 =7.5kΩ,R C =10kΩ,R L =10kΩ,三极管U BE =0.6V,β 1 =β 2 =50。C 1 =C 2 =C E =C 3 =50uF,试求:
【单选题】The sun _____in the east and ______ in the west.
A.
rise set
B.
rose sets
C.
risen set
D.
rises sets
【单选题】The sun _______ in the east and _______ in the west.
A.
rise; set
B.
rises; sets
C.
rose; set
D.
is rising; is setting
【单选题】The teacher said that the sun ________ in the east and ________ in the west.
A.
rose; set
B.
rises; sets
C.
raises; sets
D.
raised; set
【单选题】The sun rose above the _____.
A.
mood
B.
earth
C.
horizon
D.
sea
【单选题】The sun rose above the _____.
A.
earth
B.
mood
C.
seaside
D.
horizon
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