Gravity flow of broken rock – what is known and unknown The knowledge in the field has been reviewed by literature studies, and using experience from personal research in sublevel caving. There is a lot of material regarding gravity flow of fine grained materials in bins, but the theory of ...
A。本题考查主语从句。“what caused the accident”在句中作主语,表示“什么导致了事故”,what 在从句中充当主语,B 选项“that”在主语从句中不充当成分,且没有实际意义,此处不符合句意;C 选项“how”表示“如何”,在从句中作方式状语,此处不符合句意;D 选项“when”表示“何时”,在从句中作时间状语,此处不...
解析 A。“What caused the accident”作主语,what 在主语从句中作主语,表示“什么导致了这场事故”。B 选项“That”在主语从句中不充当成分;C 选项“Which”表示“哪一个”,不恰当;D 选项“Who”表示“谁”,但此处不确定是人还是物导致了事故,所以用“What”更合适。
A. what B. that C. which D. who 相关知识点: 试题来源: 解析 A。本题考查名词性从句中的主语从句。“It”是形式主语,真正的主语是后面的从句。从句中缺少主语,“what”在从句中可以充当主语,表示“什么”。“that”在名词性从句中不充当成分,“which”表示“哪一个”,“who”表示“谁”,均不符合题意...
“It is still unknown”后接主语从句,在这个从句中,缺少主语,A 选项“what”在从句中可以充当主语,表示“什么”;B 选项“that”在主语从句中不充当成分,只起连接作用,此处不符合;C 选项“which”表示“哪一个”,有选择的意味,此处不符合;D 选项“who”表示“谁”,不符合句子语境。
It is still unknown ___ caused the accident. A. what B. that C. who D. which 相关知识点: 试题来源: 解析 A。本题考查主语从句,根据句意“什么导致了这场事故还不知道”,用 what 引导主语从句,在从句中作主语,表示“什么”,that 在主语从句中不充当成分,who 表示“谁”,which 有选择的意味,...
What is known, unknown, and needed to be known about damage caused by wild pigsAgricultureCrop damageFeral hogsInvasive wild pigsSus scrofaWild boarBOAR SUS-SCROFAVEHICLE COLLISIONSFERAL PIGSMANAGEMENTDamage assessments provide evidence for initiating and evaluating management programs that protect natural ...
It is still unknown ___ influenced his personality so much. A. what B. that C. which D. who 相关知识点: 试题来源: 解析 A。本题考查名词性从句中的宾语从句。“what”在从句中作主语,表示“什么”,整句话意思是“什么对他的性格影响如此之大仍不清楚”。“that”在宾语从句中不充当成分,此处不...
___ has taken away my bag is unknown. A. Who B. What C. Whether D. That 相关知识点: 试题来源: 解析 A。本题考查主语从句。“Who has taken away my bag”在句中作主语,who 在从句中充当主语,表示“谁拿走了我的包”。选项 B 中的 what 表示“什么”,不符合此处的语境,所以 B 错误。选项...
whether plants send chemical warnings to their neighbors 相关知识点: 试题来源: 解析 A细节题。定位到第二段的最后一句Butexactlyhowplantsreceiveandactonmanyofthesesignalsisstillmysterious可知,现在还不为人所知的是这些植物是如何接收并处理诸多信号的。因此本题的正确答案为A。反馈 收藏 ...