有关黄土高原的叙述，错误的是（ ）
A：地表支离破碎
B：窑洞是传统民居
C：水土流失严重
D：水运仍是重要的运输方式
一只标有“6V 0.6A”的小灯泡，若加在其两端的电压是3V，则灯泡的额定功率是____ W，实际功率是____ W．若把它接在电压为9V的电源两端并使它正常发光，则需要____ 联一个____ Ω的电阻．
—I don't care what people think.
—Well, you ___. You're not alone in this world.
Hangzhou ____ ____ ____ the West Lake in the world.
