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【单选题】
His doctor says he will not be well again for several days. He will be staying in the hospital on Friday. ( so )
A.
His doctor says he will not be well again for several days,so he will be staying in the hospital on Friday.
B.
He will be staying in the hospital on Friday, so his doctor says he will not be well again for several days.
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【简答题】As we are still ignorant of millions of unique life forms in the rainforest, deforestation can be compared to the destruction of ______.
【单选题】下列函数中定义域为R,且是奇函数的是(      )
A.
=x 2 +x
B.
=tanx
C.
=x+sinx
D.
=
【单选题】在单杠杆差压变送器中,测量膜盒内充注硅油的作用是()。 ①传递压力信号 ②增强膜片的刚度 ③防止变送器振荡 ④对膜片运动产生阻尼 ⑤提高变送器的放大倍数 ⑥提高测量信号的范围
A.
②③⑤
B.
①②⑥
C.
①③④
D.
③④⑤
【单选题】Ignorant people were ______ of Columbus's theory that the earth was round.
A.
mysterious
B.
cynical
C.
skeptical
D.
tolerant
【单选题】在单杠杆气动差压变送器中,测量膜盒的作用是-- 。
A.
把压差信号转换成轴向推力
B.
把压差信号转换成挡板开度
C.
把压差信号转换成0.02 ~ 0.1 MPa气压信号
D.
把压差信号转换成主杠杆的转角
【单选题】在单杠杆差压变送器中,测量膜盒内充注硅油的作用是( )。
A.
递压力信号;②增强膜片的刚度;③防止变送器振荡;④对膜片运动产生阻尼;⑤提高变送器的放大倍数;⑥提高测量信号的范围。
B.
②③⑤
C.
①②⑥
D.
①③④
E.
③④⑤
【简答题】在气动单杠杆差压变送器中。测量膜盒是怎样组成的?它的作用是什么?为什么有的测量膜盒大,有的测量膜盒小?
【单选题】在单杠杆气动差压变送器中,测量膜盒的作用是_________。
A.
把压差信号转换成轴向推力
B.
把压差信号转换成挡板开度
C.
把压差信号转换成O.02〜 0.1 MPa气压信号
D.
把压差信号转换成主杠杆的转角
【简答题】(unique, ignorant, starve, intimate, convey, merchant's, relevence, obscure) 亚洲缺粮时,西方国家送去了粮食。 When Asia _______, the West sends grain.
【简答题】(unique, ignorant, starve, intimate, convey, merchant's, relevence, obscure) 这就像是商人的普遍价值标准。 It was like the ________ universal standard of value.
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