搜题请搜索小程序“爱下问搜题”
问题 单项选择题

一般船舶采用“尾先离”时，有关船尾摆出角度的操作下列哪项正确（）？

A.流速较大时，船尾摆出角度应增大

B.流速较小时，船尾摆出角度应减小

C.吹开风时，船尾摆出角度应减小

D.吹拢风时，船尾摆出角度应减小

答案

参考答案：C

单项选择题

Questions from 31 to 35 are based on the following passage: Against this background, the WTO faces several daunting challenges. The first is to continue bringing down tariffs on traded goods. Average penalties have fallen steadily since the GATT’s formation but even the most open economies retain lofty barriers: for instance, America still charges a tariff of 14.6% on import of clothing, five times higher than its average levy.Resistance to tariff cuts is pest in agriculture. According to Tim Josling, a trade expert at Stanford University, tariffs and other barriers on farm goods average a crippling 40% worldwide and create distortions that “destroy huge amounts of value”. A new set of global farm talks is planned to start in 1999. At the least, you might think, these could lock in impressive reforms in Latin America and encourage further watering-down of the European Union’s Common Agricultural Policy. But they will prove difficult: squabbles over agriculture almost sank the Uruguay round.

The best title for the passage is（）.

A．NEW TRADE RULES

B．UNFAIR TRADE RULES

C．TRADE BARRIERS FOR DEVELOPING COUNTRIES

D．TARIFF CHALLENGES TO WTO
查看答案
单项选择题

患者男性，45岁，乙肝病史5年，2周前出现阵发性高热、寒战，体温达39.3℃，约2h后体温降至37℃，未予治疗，5d前出现右上腹持续性胀痛，伴高热不退。查体：体温39.5℃，血压105/60mmHg，脉搏120/ min，呼吸28/min，急性面容，巩膜轻度黄染，结膜无苍白，右肺下野呼吸音弱，双肺未闻及干湿啰音，右上腹饱满，有压痛、反跳痛及肌紧张，肝区叩痛阳性，移动性浊音阴性，双下肢无水肿。化验血常规：白细胞14.2×109，中粒细胞0.81，血红蛋白112g/L，血小板204×109。肝功：ALT 76U/L，TBiL 44μmol/L；AFP 124μg/L。超声检查见肝内有一低密度灶。目前首先考虑的诊断是是

A．肝脓肿
B．继发性肝癌
C．活动性肝硬化
D．乙型病毒性肝炎复发
E．原发性肝癌
查看答案