单位面积储存量是综合反映仓容利用率程度的，是仓储工作的一项重要经济指标。
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Michael is talking to the agent ________________.[音频]
A. about the security check
B. at the check-in counter
C. at the boarding gate
D. on the plane
By asking the questions about the luggage, the agent ________________.
A. wants to charge the passenger
B. wants to identify the passenger
C. wants to ensure the safety
D. wants to ensure its actual owner
Michael will ________________.
A. take Seat A28
B. take Seat A21
C. go to Gate A21
D. go to Gate A28
What is the man looking for?[音频]
A. The bookstore.
B. The police station.
C. A map of the town.
D. A shoe repair shop.
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