【单选题】某溶液的透光率为 50% ,则其吸光度为 ( )。
【单选题】We can draw a conclusion from the text that the overall U.S. economy
A.
must guard against foreigners selling their steel at shocking prices.
B.
had difficulty in sustaining development in face of foreign competitors.
C.
can benefit enormously from the lower prices of steel in world markets.
D.
took advantage of the government's protection to enhance efficiency.
【判断题】对于因债务人抵债而获得的固定资产,应检查产权过户手续是否齐全,固定资产计价及确认的损益是否符合相关会计准则的规定。 ()
【判断题】对于因债务人抵债而获得的固定资产,应检查产权过户手续是否齐全,固定资产计价及确认的损益是否符合相关会计准则的规定。
【多选题】关于OFDM技术,说法正确的是:
A.
LTE上行链路所采用的SC-FDMA多址接入技术基于DFTspreadOFDM传输方案
B.
OFDM系统的输出是多个子信道信号的叠加,如果多个信号的相位一致,所得到的叠加信号的瞬时功率就会远远高于信号的平均功率,即OFDM系统的PAPR较高
C.
OFDM调制对发射机的线性度,功耗提出了很高的要求,所以在LTE上行链路,基于OFDM的多址接入技术并不适合用在UE侧使用
D.
上行采用SC-FDMA后,在降低峰均比的同时,也降低了频谱效率
【单选题】We can draw a conclusion from the text that the overall U.S. economy
A.
must guard against foreigners selling their steel at shocking prices.
B.
had difficulty in sustaining development in face of foreign competitors.
C.
can benefit enormously from the steel lower prices in world markets.
D.
took advantage of the government's protection to enhance efficiency
【判断题】某溶液的透光率为50%,则其吸光度为0.50。
【判断题】对于因债务人抵债而获得的固定资产,应检查产权过户手续是否齐备,固定资产计价明讲确认的损益是否符合相关会计准则的规定。
【判断题】目前大部分的氧传感器自带加热元件,可在发动机起动10秒内迅速将氧传感器加热至工作温度。