单位叶面积在单位时间内干物质增量,用下式表示()。
A.(1/W)(dw/dt)
B.(1/A)•(dw/dt)•
C.(1/L)(dw/dt)
D.(L/W)•
参考答案:C
淋巴结结核最常见于哪个部位淋巴结()
A.支气管
B.肠系膜
C.腹股沟
D.颈部
E.腋窝淋巴结
—It is said that a new zoo will be built in our town.
—I'm _______ it. Zoos are terrible for animals. [ ]
A. through
B. besides
C. against
D. except