利用( )说明高度比较直观。
A. 测者子午面天球图
B. 者真地平平面图
C. 天赤道面平面图
D. A+C
下述三种天球图形中.能直观反映天体高度的是( )。①天赤道面平面图;②测者子午面天球图;③测者真地平平面图。
A. ①②
B. ①③
C. ②③
D. ①②③
Could I speak to ______ is in charge of International Sales please?
A. who
B. what
C. whoever
D. whatever
The reason _____ I was sad was ______ he didn't understand me.
A. why; because
B. that; that
C. why; that
D. that; because