秋冬季腹泻的病原是
A．致病性大肠杆菌B．白色念珠菌C．金黄色葡萄球菌D．轮状病毒E．柯萨奇病毒
参考答案：D
负压吸宫术适用于终止妊娠孕周是（）
A.7周以内
B.8周以内
C.9周以内
D.10周以内
E.11周以内
For balance sheet purposes, inventories based on: （）
A. LIFO are preferable to those based on FIFO, as they more closely reflect the current costs.
B. weighted average are preferable to those based on FIFO, as they more closely reflect the current costs.
C. FIFO are preferable to those based on LIFO, as they more closely reflect current costs.
