凡是含氮的化合物均可视为生物碱。
A. 对
B. 错
What is the main idea of the news report?
A. More people buy education insurance.
B. The cost of raising a child in the UK has increased.
C. Many families cannot afford their children’s education.
D. Parents buy more expensive products for their children.
At which stage of the child’s growth do parents spend the largest amountof money?
A. When their child is between 2 and 5 years old.
B. When their child is between 5 and 10 years old.
C. When their child studies at university.
D. When their child starts a business.
Where does the largest part of the child-rearing cost go to?
A. Food and clothing.
B. Food and health care.
Child care and education.
D. Food and child care.
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