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题目内容
（西安石油大学大学英语二）
Why is it difficult to carry out a worldwide birth control program? ( )(本题0.5分)
A、 Because it will do harm to the national economy in most countries.
B、 Because it will lead to complex social problems in developing countries.
C、 Because people are unwilling to practice birth control.
D、 Because different governments have different opinions.
A、 Because it will do harm to the national economy in most countries.
B、 Because it will lead to complex social problems in developing countries.
C、 Because people are unwilling to practice birth control.
D、 Because different governments have different opinions.
参考答案