更多"[单选题]I was so sleepy that I could h"的相关试题:
[单选题]I could the wind blowing on my face
A.felt
B.feel
C.feels
D.to feel
[单选题] She had to ________ so that she could be heard by her parentS.
A. call up
B. call out
C. point up
D. point out
[判断题]尾部受热面的低温腐蚀是由于 SO2 氧化成 SO3 ，而 SO3 又与烟气中蒸汽结合，形成酸蒸汽。
A.正确
B.错误
[判断题]尾部受热面的低温腐蚀是由于SO2氧化成SO3，而SO3烟气中的蒸汽结合，形成酸蒸汽。（ ）
A.正确
B.错误
[填空题]双氧水脱硫主要原理是利用双氧水的( ),将烟气中的SO2氧化为H2SO4,实现对SO2的脱除。
[单选题]某一瞬间,参加反应的混合气体中,( )分压与SO3.SO2二者分压之和的比率称为SO2转化率。
A.SO2
B.SO3
C.O2
D.H2SO4
[判断题]
A country's balance of payments accounts keep track of both its payments to and its receipts from other countries.
A.正确
B.错误
[判断题]he Sullivan principles mandated that GM could operate in South Africa as long as the company complied with the apartheid laws.
A.正确
B.错误
[判断题]
Free trade in agriculture could jump-start economic growth among the world's poorer nations and alleviate global poverty.()
A.正确
B.错误
[判断题]在6.4克SO2中含有6.02错1023个SO2分子。
A.正确
B.错误
[单选题]2mol的H2SO4中含有( )mol H+,( )mol SO4
A. 4,2
B. 2,2
C. 2,4
D.1,1
[单选题] He said he could do much better on the tests if___more timE.
A. gave
B. give
C. giving
D. given
[单选题] There are several factors that could___your application being declineD.
A. benefit from
B. turn to
C. result in
D. meet with
[单选题]I did appreciate it if you could tell me how the machine
A. operate
B. to operate
C. operating
D. operated
[单选题] If you keep house every day, you are( ).。
A.guarding the house
B. a housewife
C.watching the house
D.an office lady
[单选题]采用哪种浓度的H2SO4作为吸附剂,SO3吸收率最低( )。
A.98.3%
B.98.6%
C.98.8%
D.99.0%
[单选题] It is hard to imagine how we could spend a day without ____ today.
A. electronics
B. electronic
C. elect
D. element
[单选题]工业上对反应2SO2+O2=2SO3+Q使用催化剂的目的是( )
A.扩大反应物的接触面
B.促使平衡向正反应方向移动
C.缩短达到平衡所需的时间,提高SO2的转化率
D.增大产品的产量
[单选题]要同时除去SO2气体中的SO3(气)和水蒸气,应将气体通入( )
A.NaOH溶液
B.饱和NaHSO3溶液
C.浓H2SO4
D.CaO粉末
