Researchers from Clemson and the University of Pennsylvania selected 13,000 people very carefully for their study. A: 正确 B: 错误

外型美观 A: unconventional enjoyment B: carefully-selected materials C: really worth the reputation D: attractive appearance

列表框的默认选择属性符合规范的正确写法为()(选择一项) A: selected="selected" B: selected C: checked="checked" D: selected="true"

If ______, the experiment will be successful. A: carefully doing B: B. it done carefully C: carefully done D: D. doing carefully

You should be more( ), you must write . A: careful; carefully B: carefully; careful C: careful; careful D: carefully; carefully

Uncle Sam is such a（__）driver that he always drives（__）. A: careful; careful B: carefully; careful C: careful; carefully D: carefully; carefully

--Does Betty write as ______ as Mary --No. Mary writes ______ than Betty. Mary writes ______ in our class. A: careful, more careful, the most careful B: carefully, more carefully, most carefully C: more carefully, carefully, most carefully

Before the experiment（） A: the four divisions were carefully selected to suit a specific programme B: each division was told to reduce its level of productivity. C: the staff involved spent a number of months preparing for the study. D: the employees were questioned about their feelings towards the study.

He doesn’t write as _____ as Tom. A: careful B: more carefully C: carefully D: most carefully

The boy plans his time ____ and____ than ever before. A: better; carefully B: better; more carefully C: more better; more carefully D: well; carefully