题目
Scientists are trying to find more ______ ways to make full use of solar energy.A. disrespectfulB. casualC. efficientD. punctual
Scientists are trying to find more ______ ways to make full use of solar energy.
A. disrespectful
B. casual
C. efficient
D. punctual
题目解答
答案
C. efficient
解析
此题考查形容词的辨析。disrespectful 意为“不尊敬的”,casual 意为“随意的”,efficient 意为“有效的”,punctual 意为“准时的”。根据句意,科学家们正在寻找更有效的方法来充分利用太阳能,因此应选择 efficient。