A：less than
B：rather than
C：as well as
D：as much as
从天文含义看四季，夏季就是一年中（）①获得太阳辐射最多的季节 ②降水最多的季节③太阳最高的季节 ④白昼最长的季节
生物实验中常常需要设置对照，以下对照设置正确的是（ ）
Another problem is if he can come at dawn.____
