Helen always comes home at weekends, () the country to the town.
A. prefer
B. to prefer
C. preferring
D. having preferred
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叩诊发现心影呈梨形增大,是由于
A. 右心室、左心室增大
B. 右心房增大
C. 左心房增大,肺动脉段膨出
D. 右心室、右心房增大
E. 左心室增大,主动脉弓突出
下列各项,影响铁剂吸收的因素是
A. 牛奶
B. 菠菜
C. 肉类
D. 茶叶
E. 植物油
肺癌的原发部位是
A. 肺组织
B. 支气管平滑肌细胞
C. 肺问质组织
D. 支气管上皮细胞
E. 支气管软骨细胞
I don't mind what you're doing, as long as you are together, () fun.
A. had
B. have
C. to have
D. having