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【华慧考博】考博英语每日一练（9.23）考博加油！
1. Applied science is ______ discovering ways to use the knowledge of theoretical science.
A. concerned about
B. combined with
C. concerned for
D. concerned with
2. David felt obliged ______for Nancy when the teacher singled her out for criticism.
A. to put a word
B. putting a word
C. to put in a word
D. putting in a word
【考博英语英译汉练习】
1. Life without regret, we can only do our best to not to regret.
2. The reason why a great man is become a great man, because they are ordinary people waste life struggling to learn.
