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Race in Hainan! | |
 1 Climb Hainan Tower. The height of the building is 200 meters, and it has 45 floors. Winners last year reached the top in 11 to 12 minutes. Have a try! (Jul. 24, 2022, Sunday 2:30 p.m.) |  2 Race on the exciting white waters of the Red Canyon(峡谷). It’s a drifting(漂流) race. Winners last year completed the 3.8 kilometers in just one hour! One person, one boat. (Aug. 7, 2022, Sunday at 2:00 p.m.) |
 3 Take nine days to race around Hainan. This is a 1,188-kilometer bicycle race. The starting point and the end of the race will be in Sanya. (Aug. 13,2022, Saturday at 9:00 a.m.) |  4 Long-distance race around Haikou. Start from Hainan University and end at the Forest Park. The race covers 20 kilometers. A service point will be set to provide the racers with water every 5 kilometers. (Sept. 17, 2022, Saturday 9:30 a.m.) |
Winners can receive cash(现金) prizes and certificates(证书). | |
1．The four race activities will be held ________.
| A．at weekends | B．on weekdays | C．in the evening | D．in the afternoon |
| A．the running around Haikou | B．the riding of bicycles |
| C．the racing on white waters | D．the climbing of the tower |
| A．one hour | B．two hours | C．three hours | D．four hours |
| A．45 kilometers | B．58 kilometers | C．132 kilometers | D．1,188 kilometers |
| A．Only one of the activities will be on road. |
| B．The four activities will last for three months. |
| C．The drifting racers will be in a group of four. |
| D．The racers will run around Haikou without any help. |
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
