People become quite illogical when they
try to decide what can be eaten and what cannot be eaten. If you lived in the
Mediterranean, for instance, you would consider octopus a great delicacy. You
would not be able to understand why some people find it repulsive. On the other
hand, your stomach would turn at the idea of frying potatoes in animal fat—the
normally accepted practice in many northern countries. The sad truth is that
most of us have been brought up to eat certain foods and we stick to them all
our lives. No creature has received more praise and abuse than the common garden snail. Cooked in wine, snails are a great luxury in various parts of the world. There are countless people who, ever since their early years, have learned to associate snails with food. My friend, Robert, lives in a country where snails ar A. disgusting B. pleasant C. acceptable D. delicious [单选题]一辆汽车将一批货物从甲地送往乙地再返回,甲乙两地相距100千米,
汽车每小时行驶90千米。汽车开到中途丙地发现有东西落在甲地,立即返回去取,
然后再送去乙地,最后花了3小时才返回甲地。问丙地距乙地多少千米?
A.30千米 B.35千米 C.65千米 D.70千米 [单选题]校验现场应装设遮栏或围栏,遮栏或围栏与校验设备高压部分应有足够的安全距离,向( )悬挂“止步,高压危险!”标示牌。
A.前 B.后 C.内 D.外 [单选题]道岔轨型应与线路钢轨轨型相同,轨型不同时应用( )过渡。
A.胶接接头 B.冻结接头 C.异型夹板 D.异型钢轨 [单项选择]附加制动器在动作开始时应强制地切断()。
A. 主电路 B. 控制电路 C. 照明电路 D. 安全电路 [单项选择]下述属于形状缺陷的有()
A. 过烧;焊缝宽窄不齐 B. 焊缝宽窄不齐;焊缝成形不良 C. 过烧;焊缝成形不良 [单选题]【单选题】下列手法中,适宜采用介质,避免擦破皮肤的是
A.揉法 B.点法 C.按法 D.擦法 [判断题]使用锯床时,工件应夹牢,长的工件两头应垫牢,并防止工件锯断时伤人。
A.正确 B.错误 [单项选择]以下关于校验码的叙述中,正确的是______。
A. 海明码利用多组数位的奇偶性来检错和纠错 B. 海明码的码距必须大于等于1 C. 循环冗余校验码具有很强的检错和纠错能力 D. 循环冗余校验码的码距必定为1 [单选题]冷水机组的基本组成不包括( )。
A.压缩机 B.冷凝器 C.水箱 D.蒸发器 [单选题]患者,女性,62岁。外伤清创术后3天,换药时见切口周围红肿,触之有波动感,穿刺有脓液,该切口应采取的措施是
A.局部热敷 B.红外线照射 C.药物湿敷 D.穿刺抽出脓液 E.拆线并引流 [单选题]当细胞将 提呈给其他细胞如T细胞时,细胞免疫应答开始启动.
A.配体 B.受体 C.抗原 D.抗体 [单项选择]根据《GB/T 15 532—2008计算机软件测试规范》,设计测试用例应遵循:基于测试需求的原则、基于测试方法的原则、兼顾测试充分性和效率的原则,以及______。
A. 测试用例无冗余性原则 B. 测试执行可重复性原则 C. 测试用例可操作性原则 D. 测试用例可管理性原则 [单选题]网络稿件传送至签发编辑等待审核的状态是[ ]。
A.A、待编辑审核 B.B、未传稿 C.C、签发退回 D.D、待签发审核 我来回答: 提交
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