A.将温水化开的酵母菌悬液加入盛有葡萄糖液的甲试管后需振荡混匀 |
B.在甲试管内的混合液表面需滴加一薄层液体石蜡以制造富氧环境 |
C.乙试管中澄清的石灰水变浑浊可推知酵母菌细胞呼吸产生了CO2 |
D.拔掉装有酵母菌与葡萄糖混合液的甲试管塞子后可闻到酒精的气味 |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2