Stephen took the view that his headache was caused by ____________.
A. major
B. pick
C. stress
D. environment
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核心家庭是指()。
A. 一对夫妻及其未婚子女组成的家庭
B. 两代以上亲子关系的家庭成员共同居住而形成的家庭
C. 两对或两对以上一代夫妇没有未婚子女的家庭
D. 两对或两对以上同代夫妇及其未婚子女组成的家庭
E. 同居家庭
I was cooking in the ____________ when the doorbell rang.
A. sign
B. kitchen
C. approach
D. introduce
In the middle of the morning a reporter jumped over the low (矮的) ____________ into Mr Lawsons garden and told him the latest news.
A. comfort
B. fence
C. shock
D. firm
学生使用的文具、娱乐器具、保健用品首先要保证()。
A. 质量
B. 安全
C. 效果
D. 外观