[单项选择]The information used by the computer to make its detailed maps ______. Ⅰ. was gathered by the Defense Department and the U. S. Geological Survey Ⅱ. shows points roughly 200 feet apart Ⅲ. involves altitude measurements A. Ⅰ B. Ⅰ and Ⅱ C. Ⅰ and Ⅲ D. Ⅰ, Ⅱ and Ⅲ
参考答案:D 答案解析:第三段说the computer map的database包括altitude measurements,而这些资料又是由the Defense Department and the U.S.Geol
第26题: [单项选择]It's high time we ______ cutting down the rainforests. A. stopped B. had to stop C. shall stop D. stop 参考答案:A 答案解析:[考点] 考查固定句型的用法。 It's high time that…从句要用虚拟语气,谓语动词要用过去时或“should+动词原形”,因此选A。
第32题: [单项选择]药物警戒 A. PV B. ADR C. DDD D. DUI E. GCP 参考答案:A
第33题: [单项选择]船舶在水深分布相等的运河中航行,若船位偏离河道中央线靠近右岸太近时:(). A. 船首将受到岸推作用,船尾将受到岸吸作用,使船首转向航道中央 B. 船首将受到岸推作用,船尾将受到岸推作用,使船舶横移向航道中央 C. 船首将受到岸吸作用,船尾将受到岸吸作用,使船舶横移向航道右侧 D. 船首将受到岸吸作用,船尾将受到岸推作用,使船尾转向航道中央 参考答案:A