玄德心神方定。随至小亭,已设樽俎,盘里青梅,一樽煮酒。二人对坐,开怀畅饮。酒至半酣,忽阴云漠漠骤雨将至。……操曰:“夫英雄者,胸怀大志,腹有良谋,有包藏宇宙之机,吞吐天地之志者也。”玄德曰:“谁能当之?”操以手指玄德,后自指,曰:“今天下英雄,惟使君与操耳!”玄德闻言,吃了一惊,手中所执匙箸,不觉落于地下。时正值天雨将至,雷声大作。玄德乃从容俯首拾箸曰:“一震之威,乃至于此。”操笑曰:“丈夫亦畏雷乎?”
1.联系上下文,猜一猜词语的意思阴云漠漠:
2.主人公是
3.请给选文取一个题目:
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