第30题: [单项选择]The indication of a slipping anchor is a(n)(). A. Decrease in mooring line length B. Increase in the opposite amperage C. Increase in the opposite line tension D. Decrease in mooring line tension and amperage 参考答案:D
第31题: [单项选择]番茄的原产地是______。 A. 西亚 B. 南美 C. 东欧 D. 北非 参考答案:B