妊娠期妇女可以应用的中成药是()
A.三七伤药片
B.六味地黄丸
C.马钱子散
D.女金丸
参考答案:B
如图所示是某厂生产的高钙片标签上的部分文字,请仔细阅读后回答下列问题:
(1)碳酸钙中碳、氧元素的质量比为______.
(2)计算高钙片中碳酸钙的质量分数.
If he here, he would agree with you. [ ]
A. was
B. is
C. were
D. will be