果蔬受冷害的初期所表现的症状主要为:()
A、褐变、果面凹陷
B、果实变小
C、结冰
参考答案:A
The loss has not yet been ______ accurately, but it is believed to be well beyond a hundred million dollars.[ ]
A.calculated
B.considered
C.completed
D.controlled
达尔文因病逝世,人们为了表达对他的敬仰,把他葬在牛顿的墓旁。这主要是因为()
A.达尔文和牛顿都有着惊人的洞察力
B.达尔文发展了牛顿的经典力学
C.达尔文是“生物学领域的牛顿”
D.达尔文进化论的影响远远超过了牛顿经典力学