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Basketball stars are usually tall. The stars of other sports are sometimes short. Some of the best football players are not very tall. Short people often have better balance than tall people, so they do not fall over very often. In some sports the players must have good balance, for example, table tennis and running. You do not need long legs to run fast! Some of the fastest runners in the world are not very tall. Some are tall and some people are short. There is no medicine to make people grow taller or to make people shorter.
Today young people in many countries grow taller than their parents. This is because they eat better food today. Good food can help children grow.
1．Table tennis often needs tall players. （______）2．People can take medicine to make them tall. （______）
3．Table tennis players are usually not very tall. （______）
4．Good food can help children grow well. （______）
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
