主页
学科
搜索
账户
常见问题
当前学科:军事高技术
题目:
单选
星光制导、GPS制导是属于()制导方式。
A . 自主式
B . 寻的式
C . 遥控式
D . 复合式
答案:
<查看本题扣1积分>
查看答案
答案不对?请尝试站内搜索
推荐知识点:
按下话音记录器控制板上的测试钮,正常情况下,控制板的测试指示器指针().
孕31~36周双顶径平均每周增长多少毫米:()
地压管理
最好的表情是微笑,但要注意时间、地点、场合。
下列哪项是细胞毒反应型()
肺气的运动主要表现为()形式。
颅内压增高的患者宜采取的卧位是()。
女,45岁,带下赤白夹杂,质粘无臭。阴部灼热,五心烦热,失眠多梦,舌红,少苔,脉细数,应属于()
宇宙临界密度是多少()?
Every country has traffic rules and signs, but are they the same? In most countries, there are street and road signs with 21________ about location,directions,dangers,cautions, and rules of the road. These 22 _________ tell drivers and pedestrians what to do and what not to do,including speed and parking 23 ________,places to stop,when to make turns,and other 24________.However, specific local traffic laws and practices usually differ around the world. For instance, in Japan, Indonesia, South Africa, the United Kingdom, and other countries ,steering 25________are on the right side of vehicles ,and cars and trucks drive on the left side of the road. In other 26 _________,such as the United States,Saudi Arabia,Italy, and Mexico,steering wheels are on the left side of vehicles ,and cars and trucks 27________on the right side of the road. An illustration of a local 28________law is the regulations for pedestrian and school 29 ________ in some Mexican cities:drivers rarely respect the rules,so for safety, people cross streets only at stop lights, on roads with little traffic, or on pedestrian-only 30 _________ across wide avenues.