下载APP
举一反三
【单选题】Less Is More It sounds all wrong--drilling holes in a piece of wood to make it more resistant to knocks. But it works because the energy from the blow gets distributed throughout the wood rather than...
A.
which
B.
there
C.
that
D.
where
【单选题】贺兰山在海拔2400~3100米的阴坡分布有云杉天然林带，其原因是
A.
海拔高，日照较强，辐射量大
B.
气温低，蒸发较少，土壤水分条件较好
C.
气温较高，且年温差、日温差大
D.
位于湿润气流迎风坡，降水较多，水源充足