Which one is not a credible source?
A、CNKI
B、Books
C、Scholarly Journals
D、Opinion columns in newspapers.
A、CNKI
B、Books
C、Scholarly Journals
D、Opinion columns in newspapers.
B.Survival craft VHF transceivers that provide a beacon on 121.5 MHz
C.COSPAS-SARSAT EPIRBs
D.SARTs operating on 9 GHz
A、which
B、that
C、how
D、where
A、int a[10]=(0,0,0,0,0);
B、int a[10]={};
C、int a[]={0};
D、int a[10]=”10*1”;
A、A standard which includes no allowance for losses, waste and inefficiencies. It represents the level of performance which is attainable under perfect operating conditions
B、A standard which includes some allowance for losses, waste and inefficiencies. It represents the level of performance which is attainable under efficient operating conditions
C、A standard which is based on currently attainable operating conditions
D、A standard which is kept unchanged, to show the trend in costs
A、good environment
B、pleasant music
C、good desserts
D、social activity
A、Regards
B、Sincerely
C、Yours faithfully
D、Yours
A、The Constitution is written
B、The Canadian Constitution is relatively flexible
C、Political power is concentrated rather than separated
D、Individual and collective rights are guaranteed
B.professional design
C.graphic design
D.picture design
A、Alumina (Al2O3)
B、Phosphorus pentoxide (P2O5)
C、Silicon nitride (Si3N4)
D、Aluminum nitride (AlN)
A、Collect and analyze data on an individual basis
B、Choose people of different natures to compare
C、Obtain the surveyed population by random sampling
D、Describe the characteristics of the disease distribution and provide a clue to the cause of the disease
为了保护您的账号安全,请在“简答题”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!