物质的用途和性质密切相关。下列用途主要是利用化学性质的是 [ ]
A．
B．
C．
D．
答案：D
Sean's strong love for his country is _____ in his recently published poems. [ ]
A. relieved
B. reflected
C. responded
D. recovered
根据我国居住区现行规范计算人居居住用地指标时，每户平均人数为哪项（）
A.2.8人/户
B.3.2人/户
C.3.6人/户
D.4.0人/户
