肝素引起严重出血的对抗药是
A．鱼精蛋白 B．维生素K C．双香豆素 D．氨甲苯酸 E．右旋糖酐
参考答案：A
There are a few grammatical errors in her essay, but ________ it is a good one.
A．all in all
B．as a result
C．in detail
D．in other words
当焙烧铸圈的温度升至900℃时，需维持（）
A.10min
B.5min
C.15～20min
D.1h
E.2h
