W: I do hope Peter do well in his 'studies this semester.M:______
A. Yes. I hope so.
B. Yes. Dear. But I am afraid the school is not nice enough.
C. Neither doI. I don' t think his words would be as good as gold.
D. Yes. Although we believe our son is honest, he may not work hard enough as he says.
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Tim collected some stamps, () the 17th century.
A. dates from
B. that dated from
C. which was dated from
D. dating from
术中取胆汁培养,菌落数大于10 7,其致病菌的主要来源是
A. 由肠道至胆道
B. 淋巴管道
C. 邻近器官
D. 经门静脉而来
E. 经动脉系统而来
某商场采用毛利率法对商品的发出和结存进行日常核算。2011年5月,甲类商品期初库存余额为50万元。该类商品本月购进为80万元,本月销售收入为100万元;上月该类商品按扣除销售折让后计算的毛利率为30%。假定不考虑相关税费,2011年5月该类商品月末库存成本为( )万元。
A. 60
B. 20
C. 80
D. 10
—George is a stupid person. —But in my opinion, he is()than stupid.
A. wiser
B. more wise
C. more wiser
D. less wise