A. native B. native with C. native by D. native to 参考答案:D 答案解析:[解析] 本题考查习惯搭配。句意为:很多观鸟者认为东方知更鸟是原产于北美的最具吸引力的鸟类。native意为“本国的,原产的;生来具有的”,当表示某地特产、原产时,native后面一般加to+名词,即
第11题: [单项选择]Passages are drilled in the crankshafts of diesel engines to provide lubricating oil to the (). A. main bearings B. connecting rod bearings C. piston pin bushings D. All of the above 参考答案:D