急性肾功能衰竭每日蛋白质摄入量应为()
A.0.8g/(kg·D.
B.1.2g/(kg·D.
C.2g/(kg·D.
D.4g/(kg·D.
参考答案:A
The visitors stood at the top of the mountain ________ east of the city, watching ______ burning sun rising.
A.the; a
B.\; the
C.the; the
D.\; a
地球的外部圈层包括
①大气圈 ②水圈 ③生物圈 ④岩石圈
A.①②③
B.①②④
C.②③④
D.①③④