After the lightning all the lights in the classroom went out.
Jack felt something approaching him in the dark.
Before he could get back to his senses, his arms were tightly bound, and his teeth had come together.
"I'm done." Remembering the rumors of vampires in school, he closed his eyes in despair.
For a long time, Jack felt that each other was leaving step by step.
If they are vampires, why don't they suck Jack's blood?
「神舟七號」航天團隊________的團結精神，是「嫦娥」成功奔月的強大動力;他們求真務實的工作作風，讓「嫦娥」的舞姿________完美;他們「一切為了祖國，一切為了成功」的航天精神，永恆地________在浩瀚無垠的太空。
填入橫線部分最恰當的一項是：
英國一項研究發現，人只要在每餐飯前半小時喝一杯500毫升的水，並堅持3個月，體重就能減輕2至4公斤。研究團隊邀請了84位超重的成人，隨機分成2組，其中41位被要求在餐前喝500毫升水，另外43位則照常生活。3個月後，團隊發現三餐前喝水的人，平均體重下降了4.3公斤；而餐前沒喝水的人，平均體重只下降了0.81公斤。研究人員說，沒有喝水的那組人，「平均運動量」比餐前飲水的人更高，這說明餐前喝適當的水真能減肥。
以下哪項如果為真，最能支持上述結論？
