植物种间对辐射强度反应的重要战略差异显示为(),它们分别具有是适应于高的和低的光辐射范围。
A.强辐射种
B.弱辐射种
C.阳地种
D.阴地种
参考答案:C, D
—Who's won the first prize in the competition?
—Henry _______. He has ______ it for a week.[ ]
A. is; won
B. is; got
C. has; had
D. has; been given
当绝对温度不变时,温度越高,相对湿度()。
A.越小
B.越大
C.不变
D.无法判断