Mouthwashes are not effective cure for bad breath mainly because
A．they can"t cover the thick layers of mucus.
B．they can"t get to all the offending bacteria.
C．they can"t mask the bad odor long enough.
D．their strong smell mixes with bad breath and makes it worse.
请帮忙给出正确答案和分析，谢谢！
What can be inferred from the passage？
A．The red bag belonged to the lady.
B．There were many fingerprints on the red bag.
C．The lady"s flat was not the burglar"s first guilty place.
D．The burglar did not come into the flat at all.
请帮忙给出正确答案和分析，谢谢！
简述萨福克羊分布、外貌及生产性能。
What did the lady find when she went through the rooms？
A．The things she possessed had been searched inside out.
B．All the rooms had been covered with broken pieces.
C．Some of the rooms were in a mess.
D．Some of the rooms had not been touched.
请帮忙给出正确答案和分析，谢谢！
Whom did the lady first think of to help her out？
A．Her neighbors.
B．The porter.
C．The policeman.
D．The passer-by.
请帮忙给出正确答案和分析，谢谢！
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