脂肪瘤的特点是( ) A．多见于头颈部 B．质硬边界不清 C．质软可有假囊性感 发布时间：2017-12-17 09:00 │ 来源：www.tikuol.com 题型：单项选择题 问题： 脂肪瘤的特点是( )A．多见于头颈部 B．质硬边界不清C．质软可有假囊性感 D．妊娠时发展快E．不发生恶变
题型：单项选择题 石墨烯（C60）是首个发现的二维空间材料，从石墨材料中剥离制得．金刚石、石墨、和C60都是由碳元素组成的单质，下列关于三种碳单质的叙述错误的是（ ）A．都是黑色固体B．碳原子的排列方式不同C．在氧气中充分燃烧都能生成二氧化碳D．将石墨剥离制成石墨烯发生了物理变化 查看答案
题型：单项选择题 码分复用(Code Division Multiplexing，CDM)中，各路信号码元在频谱上和时间上都是_________的，但是不同用户传输的信号是靠各自不同的(正交)编码序列来区分的。 查看答案
题型：单项选择题 启蒙思想家伏尔泰在所著《哲学书简》里评论某国的政治说：“这个国家的人民曾抵抗过其君主，遂使君主的权力受到节制。他们建立了一个明智的政体，使其君主有能力做好事，而无法做恶事；其贵族很有势力，但不仗势欺人；其平民能够参与政治，却并未导致混乱。”根据伏尔泰的评论，下列说法正确的是（）A.伏尔泰评论的这个国家应是18世纪的美国B.伏尔泰的主张是保守落后的C.伏尔泰认为贵族政治与平民政治是可以兼容的D.伏尔泰主张实行君主专制 查看答案
题型：单项选择题 Customs officers at a London airport yesterday found $ 500 000 worth of drugs which were being smuggled into Britain in boxes marked "Urgent Medical Supplies. " The (51) might have suspected for some time that the drugs were being brought into the country in this way. The (52) is believed to be the work of a well-organized international group. Four men were arrested at the airport and held for questioning, (53) it is unlikely that they are organizers. In fact, they declared that they were (54) of what the boxes contained and had acted in good faith in bringing (55) into Britain. This is the third time in six months that attempts have been made to smuggle (56) goods through Customs by declaring them to be medical supplies. They are frequently (57) in special containers and a warning is given that they may be (58) if they are not handled with care. They are determined to put a (59) to this practice, said one of the Customs officers today. (60) is no way these people are going to get away with this any lon- ger. We have the full cooperation of the International Police who are as anxious as we are to track down the main source of supply.A．immoralB．criminalC．illegalD．irregular 查看答案