2. 外语
  3. Since I could not see anything through the microscope, ______ my careful adjustment, I gave up.

Since I could not see anything through the microscope, ______ my careful adjustment, I gave up.

admin2010-01-15  37
问题 Since I could not see anything through the microscope, ______ my careful adjustment, I gave up.
选项 A、for all
B、above all
C、after all
D、in all
答案A
解析 for all尽管，虽然。
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