【单选题】设线数 的光栅其零级主极大强度为 ,在其他条件相同时, 的光栅其零级主极大强度为 ,则 为( )
【单选题】The increase of greenhouse gases_________
A.
will influence future climate change
B.
was somewhat surprising
E.
was much higher than had been expected
F.
will drop dramatically
【单选题】为了解某个数值以下的数据数目是多少,需要制作
【单选题】Why is Margaret Chan disappointed?
A.
No important steps to stop climate change have been taken.
B.
Many droughts and floods have been reported worldwide.
C.
No deal on climate change was struck at the Copenhagen conference.
【单选题】我国利用微生物发酵酿酒的考古证据可追溯到什么时间?
【单选题】设线数N1=600的光栅其零级主极大强度为I1,在其他条件相同时,N2=1800的光栅其零级主极大强度为I2,则I2/I1为
【单选题】The research by Hardisty and Weber aims at ______.
A.
changing people's view on climate change
B.
altering people's concept on consumption
C.
seeking ways to convince people to limit climate change
D.
increasing the benefit from acting on climate change