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【华慧考博】考博英语每日一练（11.7）考博加油！
1. According to Charles Darwin, random changes that enhance a species’ ability to survive are naturally selected and passed on to _______ generations.
A. successive
B. succeeding
C. relative
D. relating
2. In order to ______ her theory that the reactions are ______, the scientist conducted many experiments, all of which showed that the heat of the first reaction is more than twice that of the second.
A. support…different
B. capture…valuable
C. evaluate…concentrated
D. demonstrate…problematic
【考博英语补全句子练习】
1. People _______________（往往会发胖）after giving up cigarettes because they turn to snacks as a substitute.
句意：人在戒烟后往往会发胖，因为他们转而吃零食来代替香烟。
2. We had better _________________（天天锻炼身体）.
句意：我们最好天天锻炼身体
