______much is known about what occurs during sleep, the precise function of slee

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问题 ______much is known about what occurs during sleep, the precise function of sleep and its different stages remains largely in the realm of assumption.

选项 A、Because
B、Since
C、As
D、While

答案 D

解析状语从句。根据句义可知，空处所缺为让步状语从句的连接词，故选while(尽管)；much as也可引导让步状语从句，但as much不可以。

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______much is known about what occurs during sleep, the precise function of slee

______muchisknownaboutwhatoccursduringsleep,theprecisefunctionofslee

Whichofthefollowingunderlinedpartsperformsthefunctionofindirectobject

Whichofthefollowingunderlinedpartsperformsthefunctionofattribute?A、She

Whichofthefollowingunderlinedpartsperformsthefunctionofobject?A、Howma

WhowillgiveakeynotespeechduringtheMDGsummit?[br][originaltext]Wo

Whatisthemostimportantfunctionoftrees?[br][originaltext]Treesare

Inthisexperiment,theyarewakenedseveraltimesduringthenight,andaskedt

It______tomethatIcanturntoMr.Linforhelp.A、happensB、occursC、reminds

Thereishardlyany______hotelroomavailableduringthesummerholidays.A、vac

WhatisIsraelprobablytodoifPalestiniansattackitssoldiersduringthepul

Working-classfamiliesintheUnitedStatesareusuallynuclear,andmanys

(1)There’sthisgreatrecurringSaturdayNightLiveskitfromseveralyears

Beingengagedintheresearchwork,Dr.Yangseldomgoesanywhere______hisoffic

Today,mostcountriesintheworldhavecanals.Manycountrieshavebuiltca

Accustomedthoughwearetospeakingofthefilmsmadebefore1927as"silen

利用激光断面仪的测量原理测量隧道超开挖量,最终可获得的成果有（）。A.隧道

下列手部软组织损伤的治疗原则中，不正确的是A.首先用中性肥皂水刷洗伤口周围皮肤

扩张型心肌病并发充血性心力衰竭患者，症状出现后的5年生存率为A.50%～60%

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