当时年仅26岁的张钰哲,看着这封极不寻常的来信,l心情久久不能平静。经过反复思考,他终于想起了一个最为亲切的名字一—中华。张钰哲情不自禁地呼叫着:“中华星!中华星!”
1.张钰哲的心情为什么“久久不能平静”?“反复思考”说明了什么?__________________________________
2.为什么说“中华”是“最为亲切的名字”?
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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

