Laws that punish parents for their little children's actions against the laws get parents ______.
A. worried
B. to worry
C. worrying
D. worry
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男,58岁。上颌牙列缺失4年,下颌牙列无缺损,曾两次以塑料为基托的上颌全口义齿修复,均使用不到一年而断裂,要求第三次修复。应选用制作基托的最佳材料是
A. 铜基合金
B. 金属丝增强基托
C. 甲基丙烯酸甲酯
D. 18-8铬镍不锈钢
E. 硬质钴铬合金
I failed in the final examination last term and only then ______ the importance of studies.
A. I realized
B. I had realized
C. had I realized
D. did I realize
某学龄儿童采用0.05%NaF漱口水预防龋齿,其使用方法应为
A. 隔周含漱一次,每次10ml,含漱1分钟
B. 每周含漱一次,每次10ml,含漱1分钟
C. 每天含漱一次,每次10ml,含漱1澉分钟
D. 每月含漱一次,每次10ml,含漱1分钟
E. 隔天含漱一次,每次10ml,含漱1分钟
—I'd like to see the movie very much, but I have no money on me. —That's OK. This is my ().
A. offer
B. treat
C. turn
D. service