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【华慧考博】考博英语每日一练（4.28）考博加油！
1. In addition to the Mandarin dialect, there are six other Chinese dialect groups, spoken mainly in southern and southeastern China. This linguistic ______, particularly in southeastern China, has provided the basis for strong regional identity and some ethnic variation within the larger Han community.
A. fragmentation
B. unanimity
C. lethargy
D. apotheosis
2. Smuggling is a ______ activity which might bring destruction to our economy; therefore, it must be banned.
A. pertinent
B. fruitful
C. detrimental
D. casual
【考博英语补全句子练习】
1. Go and _________ __________（弄清楚）who is knocking at the door.
句意：去弄清楚谁在敲门。
2. He ________ about half an hour ________ his homework every day. （他每天大约花半个小时做家庭作业.）
