U.S. stocks took a dive after Yellen's comments, and then New York Fed President William Dudley agreed with Yellen.From this sentence, we can infer that
A. the US stock market was booming
B. the US stock market kept steady
C. the US stock market suddenly went down significantly
D. the US stock market was fluctuating
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财金报道中常见的道琼斯指数的英语全称为____________. (本题要求提交的答案的每个单词首字母大写)
血清中不含有下列哪种成分
A. 球蛋白
B. 清蛋白
C. 电解质
D. 纤维蛋白原
血浆和血清的概念,下列错误的选项是
A. 血清是血液离体后血块收缩所分离出的微黄色透明液体
B. 血浆是血液离体后血块收缩所分离出的微黄色透明液体
C. 血浆可用于凝血因子检测
D. 抗凝血一般是指血液加抗凝剂后的全血
血液有形成份是指
A. 血液所有成份
B. 纤维蛋白原
C. 细胞
D. 血清