Venus (金星) is known as the earth’s
"twin" because the two planets are so like each other in size. The diameter of
Venus is about 7, 520 miles (12,100 km. ), smaller than that of the earth. No
other planet comes closer to the earth than Venus. At its nearest approach it is
about 25,000,000 miles (40,2000,000 km. ) away. As seen from the earth, Venus is the first planet or star that can be seen in the western sky in the evening. At other times, it is the last planet or star that can be seen in the eastern sky in the morning. When Venus is near its brightest point, it can be seen in daylight. Early astronomers called the object that appeared in the evening Hesperus, and Phosphorus in the morning. Later, they realized these two objects were the same planet. They named it Venus in honor of th A. Venus is always the last to appear in the sky in the evening B. Venus is sometimes the last to appear in the sky in the morning C. Venus is sometimes the last to disappear in the eastern sky in the morning D. Venus is sometimes the last to disappear in the western sky in the morning [判断题]中央预算投资项目和其他专项建设资金项目由项目法人组织竣工验收。
A.正确 B.错误 [单项选择]脊髓髓外硬膜下病变最常见的是()
A. 蛛网膜囊肿 B. 脊髓动脉瘤 C. 神经鞘瘤 D. 脊髓动静脉畸形 E. 转移瘤 [判断题]影剧院观众厅发生火灾时,在扑救时应在屋顶外两侧设置水枪阵地,堵截火势由闷顶内向舞台、放映室蔓延()(易)
A.正确 B.错误 [单项选择]授权是指领导者授予下属一定的()
A. 权力 B. 责任 C. 权力和责任 D. 任务 E. 职责 [单项选择]Although students may be in a ______ position, teachers shall treat them as equals.
A. subsidiary B. submarine C. subordinate D. subsequent [判断题]对幼儿进行初步的性教育是幼儿心理健康教育的主要内容。
[判断题]任何物体只要它的温度高于绝对零度,就存在热辐射,而热辐射中最强的电磁波是红外波。因此,利用红外检测可以直接检测发现变压器内部发热缺陷。( )
A.正确 B.错误 [单选题]机动泵尽可能放置水平位置,工作状态时倾斜角不应大于( )。
A.10° B.15° C.20° D.30° [多选题]以下()是地市公司变电检修室的职责。
A. A.编制所辖设备年度检修计划和检修方案 B.B.负责检修项目具体实施,开展检修项目的自验收和总结 C.C.组织所辖班组开展设备专业巡视 D.D.参与所辖设备年度检修计划制定 [单项选择]喉上动脉、喉上静脉进入喉内时穿过()
A. 甲状舌骨膜 B. 方形膜 C. 三角膜 D. 环甲膜 E. 弹性膜 我来回答: 提交
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