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In early 2020, a disease called COVID-19 (新型冠状病毒肺炎) hit Wuhan. Doctor Zhong Nanshan advised people to wear masks (口罩), wash hands frequently, stay at home and not to go to crowded (拥挤的) places.
Lily is a student from a primary school. She stayed at home with her grandparents. Her father is a doctor. Her mother is a nurse. They both went to Wuhan to save the patients’ lives. They worked very hard. They are the heroes (英雄). Lily studied hard online at home. She is a good student.
Lily and her parents all did their best to help our country. We should learn from them.
1．COVID-19 hit Wuhan in _____. ( )| A．2002 | B．2012 | C．2020 |
| A．take a trip | B．have parties | C．stay at home |
| A．nurse | B．teacher | C．doctor |
| A．To Wuhan. | B．To Beijing. | C．To Shanghai. |
| A．Yes, she did. | B．No, she studied online at home. | C．No, she studied in the library. |
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
