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【华慧考博】考博英语每日一练（9.21）考博加油！
1.The periodic nature of her complaints began to concern us: alarmed by these ______ attacks, we decided to consult a doctor in spite of her opposition.
A. superficial
B. recurrent
C. spontaneous
D. tentative
2. The student said there were a few points in the essay he ______ impossible to comprehend.
A. had found
B. finds
C. has found
D. would find
【考博英语英译汉】
Additional social stresses may also occur because of the population explosion or problems arising from mass migration movements—themselves made relatively easy nowadays by modern means of transport.
