With two walls in their bedroom sanctuary beginning to disintegrate（）
A. a warm place
B. shelter
C. a clean place
D. a harmful place
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Debris flew as the living-room fireplace and its chimney collapsed（）
A. small individual parts
B. completely good places
C. well preserved pieces
D. scattered broken pieces
人耳的听觉频带是（）
A. 200-2000
B. Hz
C. B．20-20000
D. Hz
E. C．20-2000
F. Hz
G. D．200-20000
Hz
商业发票的英文是（）
A. sale contract
B. invoice
C. packing
D. condition
Which one of the following risks can be independently insured with an insurance policy of CIC（）
A. General extraneous risks
B. War risks
C. All Risks
D. Strike risks
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