持有国际储备的机会成本越大，其国际储备的保有量应越低。
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The type of davit on which you must turn a crank in order to swing the lifeboat out over the ship’s side is a（）.
A. sheath-screw davit
B. gravity davit
C. radial davit
D. bruckner davit
Which two statements about MAC addresses in the Cisco UCS are true?（）
A. The first 2 octets represent the manufacturer OU
B. The first 3 octets represent the manufacturer OU
C. The last 3 octets are assigned by the organization itseIf.
D. The last 4 octets are assigned by the organization itseIf.
脓耳日久，耳脓清稀量多，缠绵日久，多呈间歇性发作，兼头晕乏力，治法宜（）
A. 利湿通窍，活血排脓
B. 益气养血，活血排脓
C. 健脾渗湿，补托排脓
D. 渗湿解毒，活血排脓
E. 渗湿消肿，活血排脓
在GB16297—1996标准中，针对烟囱（）种高度的尾气排放，都分别规定了最高允许排放速率。
A. 六
B. 八
C. 十
D. 十二
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