【单选题】Grammatical sentences are regarded as unimportant because ______.
A.
words are uttered out of natural feelings only
B.
it is better to use verbs only
C.
it is felt that formal grammar rules might cause unnatural expression
D.
talking freely and naturally with no regard to grammatical rules is a better form. of expression
【单选题】How did the residents in the Vrain School District respond to the budget shortage?
A.
They felt somewhat helpless about it.
B.
They accused those responsible for it.
C.
They pooled their efforts to help solve it.
D.
They demanded a through investigation.
【单选题】How did the teenagers feel after rescuing the kangaroo?
A.
They were delighted and proud .
B.
They were worn-out but excited .
C.
They were worried about the kangaroo .
D.
They were uncomfortable with the attention .
【简答题】建立虚拟植物生长模型,需要经过哪几个步骤?
【单选题】______ he did was quite right.
【简答题】随着转炉吹炼的进行,炉渣碱度升高,大部分 (MnO) 呈自由状态,吹炼后期炉温升高后, (MnO) 被还原,转炉吹炼终了时钢中的锰含量称为( )。
【单选题】告警维护信号中,( )表示复用段远端劣化指示。