The "quota system" is a system which ( ).

Which of the following explains the essence of quota sampling?

Which of the following may possibly result in disputes？ （ ）。 A: breakage of the package B: rising of price C: fluctuation of exchange rate D: quota

The process by which an importer notifies Customs that it has imported a particular product. This definition is( ). A: cleared B: entry C: liquidated entry D: quota

Which trade policy results in the government levying a "two-tier" tariff on imported goods? A: Tariff quota B: Nominal tariff C: Effective tariff D: Revenue tariff

I If a sample is selected using random sampling, it will be free from bias.II A sampling frame is a numbered list of all items in a sample.III Cluster sampling is a non-probability sampling method.IV In quota sampling, investigators are told to interview all the people they meet up to a certain quota.Which of the above statements are true? A: I, II ,III and IV B: I, II and IV only C: I and Il only D: I and IV only

Assume the United States adopts a tariff quota on steel in which the quota is set at 2 million tons, the within-quota tariff rate equals 5 percent, and the over-quota tariff rate equals 10 percent. Suppose the U.S. imports 1 million tons of steel. The resulting revenue effect of the tariff quota would accrue to:（  ） A: The U.S. government only B: U.S. importing companies only C: Foreign exporting companies only D: The U.S. government and either U.S.   importers or foreign exporters

以下关于quota命令的说法，正确的有

关于伏羲资源调度quota机制描述正确的是？( )

Users frequently overrun the amount of space intended for them, resulting in full home filesystems. The customer is currently using AIX 5.3 with a mix of JFS and JFS2 filesystems. Which of the following will contain the growth of the home filesystem space?（） A: Implement disk quota for all home filesystems B: Implement disk quota for the JFS2 home filesystems C: Recreate the home directories as individual filesystems D: Run the find command every night and delete all old file