（）是通过优化项目建设方案、重大布局和结构调整，节约原材料消耗，提高原材料利用效率。
A.节约木材
B.节约用水
C.节约能源
D.节约原材料
参考答案：D
What worried the child most was _____________ to visit his mother in the hospital.[ ]
A. to his being allowed
B. his not being allowed
C. not his being allowed
D. not his allowed
“善行数变”的邪气是
A．风
B．暑
C．燥
D．火
E．湿
