四气
参考答案：
亦称四性，指的是药物寒热不同的性质，具体内容包括寒、热、温、凉、平。
与儿童佝偻病关系较密切的营养素有（）
A.铁、碘
B.氯化钾、必需脂肪酸
C.钙、维生素D
D.葡萄糖、必需氨基酸
E.锌、铁
Which of the following statements is FALSE()
A. In a currency swap, the notional principal is actually swapped twice, once at the beginning of the swap and again at the termination of the swap.
B. The time frame of a swap is called its tenor.
C. In a currency swap, only net interest payments are made.
