When approaching Block Island Sound from Long Island Sound，you will enter waters governed by the International Rules of the Road when you（）. ["pass through The Race","cross the territorial sea boundary","exit Block Island Sound to the east or south","None of the above，as Long Island Sound is governed by the International Rules of the Road"]
交磁电机放大机像普通（）一样，也是由定子和电枢组成，用一台交流电动机拖动而旋转。 ["单相电机","交流电机","直流电机"]
相对于市场分配而言，下列哪些情况减少了收入或财产分配的不平等状况（）。 ["政府向穷人的转移支付","最低工资法","政府对富人征收遗产与赠与税","开征比例所得税","婚姻门当户对"]
Gas turbines differ from steam turbines in that （）. ["steam rather than gas is used to turn a shaft","vapor rather than gas is used to turn a shaft","the former uses gas to turn a shaft","the latter uses gas to turn a shaft"]
（）是指产品从厂家到消费者手中经过的所有批零渠道。 ["价差","促销渠道","营销渠道","间接渠道"]
简述烧结原料的种类。
