A. vicinities B. spots C. locations D. localities 参考答案:B 答案解析:[句意]他和其他的环保主义者经常去风景胜地捡拾人们乱扔的垃圾。 [辨析]近义词辨析。scenic和spot通常搭配使用,意为“风景胜地”;locality意为“地点,位置”,具有模糊或不确定边界
第19题: [单项选择]This is a ______ building, which is about ______ high. A. six-storey; 38 metre B. six-storeys; 38-metre C. six-storeyed; 38 metres D. six-storey; 38-metres 参考答案:C 答案解析:第一空“六层的楼房”可表达为a six-storey building/a six-storied building/a building of six stories;第二空“数词+名词+形容词”作
第22题:[单项选择]<br><br><br/>A.which<br/>B.what<br/>C.who<br/>D.whose<br/>参考答案:C 答案解析:[注释] 此句为定语从句,who引导的从句修饰a few very rich people,并且a few very rich people在从句中作主语,故用who。
第32题: [单项选择]细胞膜在静息状态下,对下列离子通透性最大的是 A. Na+ B. K+ C. Ca2+ D. Mg2+ E. Cl- 参考答案:B 答案解析: 膜内外离子分布不均匀和膜对离子的选择性通透是产生静息电位的重要条件。细胞在安静状态下,对不同离子的通透性不同,对K+的通透性大(K+通道处于开放状态