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问题 单项选择题

颜面危险三角区的范围是

A．两侧颏孔至鼻根的连线
B．两侧口角至鼻尖的连线
C．两侧口角至鼻根的连线
D．两侧颏孔至鼻尖的连线
E．两侧口角至眉间的连线

答案

参考答案：C

选择题

The accident _____ on the morning of last Monday. [ ]

A. was happened

B. was taken place

C. took place

D. happening

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选择题

---Do you know Taiwan, Jenny?

---Yes, of course. Taiwan is ________ island. It belongs to China.

A. a                    B. an               C. the

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