The damage was caused by either the earthquake __________ the subsequent explosions.

1.After a great many loud explosions, the race began.

Methane and air explosions occur in the well-known mixture range of 15% to 25% methane in air.

Methane and air explosions occur in the well-known mixture range of 15% to 25% methane in air. A: 正确 B: 错误

Methane and air explosions occur in the well-known mixture range of 5% to ( )% methane in air. A: 10 B: 15 C: 20 D: 25

6. My mind is always drawn back to that first day in the meadow, the explosions destroying the peaceful flowers and the naïve days of my childhood. (Para.9, L1)

News Report OneQuestions 1 and 2 are based on the news report you have just heard.________ A: Terrorists fought with Government troops. B: Thai troops killed terrorists. C: There were shootings. D: There were explosions.