A. Acquire information from satellites more efficiently. B. To realize full coverage of area the satellite passes over. C. Building more ground observation centers. D. Compare satellites information with those from groun 参考答案:D 答案解析:[解题思路] 本题测试的是对句意的理解。 [详细解答] “Mr. Jackson now plans to compare the microwave dish receiver finding
第31题: [单项选择]男,19岁,患病一周,牙龈乳头坏死,前牙唇侧明显,坏死形成溃疡处凹陷,表面灰白色假膜,触之出血明显,口腔有腐性口臭。体温37.8~C,颏下淋巴结肿痛,既往未出现全身明显异常现象。有辅助诊断意义的检查是() A. 白细胞分类 B. 脱落细胞检查 C. 革兰染色涂片 D. X线片 E. 组织病理 参考答案:C 答案解析:题干的病例表现是典型的急性坏死性龈炎表现,而且既往未出现全身明显异常现象,可排除白血病,因此,对急性坏死性龈炎具辅助诊断意义的检查是答案C,革兰染色涂片。