82.( As ) the ( centrally ) control organ of the body, the brain governs the ( functioning ) of the body's ( other ) organs 答案是B, 但我觉得C 也不对,不是说当名词有其形式时,最好用原行吗,那就是function呀
84. Precipitation in ( mountainous ) regions that (collects) in a number of ( small )valleys that ( are called )rills and gullies.
答案是B,但这提是否有错误,搞不清哪个是谓语
. 87.Alpha rhythm, a brain (wave )frequency of moderate voltage, is ( characteristic )of a person( when )is awake but (relaxed) 答案是D ,但我觉得B也不对,characteristic是可数名词,应家修饰或复数呀
by yongchou The pdf version misses out underlining the fisrt "that", so it should be :
84. Precipitation in mountainous regions (that collects) in a number of small valleys that are called rills and gullies. Precipitation collects in....... Not "regions collect".