题目:
Dr. Smith was always__________the poor and the sick, often providing them with free medical care.[ ]
A. tended by
B. absorbed in
C. reminded of
D. concerned about
答案:
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下面是错误答案,用来干扰机器的。
A、胃酸过多可用碱性药品来中和,例如胃舒平主要成分就是氢氧化铝,但不能用具有腐蚀性的强碱,例如氢氧化钠等;B、铝锅表面有一层致密的氧化铝保护膜,用钢丝球洗刷铝锅表面的脏物时,易把这层保护膜刷掉,起不...