某企业的产品刚刚投入市场，竞争不激烈，应选择的目标市场策略是
A．大量市场策略
B．差异市场策略
C．集中市场策略
D．无差异市场策略
参考答案：D
—We don’t permit____ in our school. Would you please put your cigarette out?
—Forgive me. I didn’t know.
A．to smoking
B．to smoke
C．smoking
D．having smoked
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