Fire can help people in many ways. But
it can also be very harmful(有害的). Fire can keep your house{{U}} (41)
{{/U}},give light and cook food. But fire can bum things,{{U}} (42)
{{/U}}. Big fire can bum trees, houses, animals or people. Nobody knows how people began to use fire. But there are{{U}} (43) {{/U}}interesting old stories about how a man or woman started a fire. One is{{U}} (44) {{/U}}a man. The man{{U}} (45) {{/U}}a very long time ago. He went up the sun and{{U}} (46) {{/U}}fire down. Today people know how to make a fire with matches (火柴). Children sometimes like to play with{{U}} (47) {{/U}}. But matches can be very dangerous. One match can burn{{U}} (48) {{/U}}, and than it could burn a house. A small fire can turn into a big fire very quickly. So you{{U} [不定项选择题]可摘局部义齿起主要固位作用的部分是( )。
A.直接固位体 B.间接固位体 C.基托 D. E.连接体 [单项选择]卵巢肿瘤考虑为恶性肿瘤时,一般有的声像图表现是:①形态不规则;②囊壁不规则增厚,呈乳头样突入囊腔;③腹水;④随访中肿块明显增大()
A. ①②③ B. ①③ C. ②④ D. ④ E. ①②③④ [单项选择]氯吡格雷75mg,每日一次重复给药,从第()天开始明显抑制ADP诱导的血小板聚集,抑制作用逐步增强并在()天达到稳态
A. 1;3-7 B. 1;7-10 C. 3;7-10 D. 3;3-5 [判断题]从安全角度考虑,化工生产的自控阀常用气开阀或气关阀。
[单项选择]滤线栅因子是指()
A. 聚焦栅 B. 栅密度 C. 栅焦距 D. 铅容积 E. 曝光倍数 [单项选择]下列关于解救毒物中毒的常规措施中,最适宜解救抗癫痫药物中毒的是()
A. 输液 B. 催吐、洗胃 C. 防止呼吸抑制 D. 预防和处理并发症 E. 应用利尿剂促进排泄 [单选题]•0126123407
A.23361 B.23361 C. CoreEngine SaveUsrDict B: D.SOGOU-IME:MSG_SAVE_USR_DICT [单选题]房地产交易中,如在房地产买卖、租赁、抵押时,对有关合同进行把关,可以咨询( )。
A.房地产经纪机构 B.金融机构 C.房地产估价机构 D.律师事务所 [单选题]在下列不平等条件中,含有强迫清政府把台湾割让给日本这一内容的是( )
A.《南京条约》 B.《辛丑条约》 C.《马关条约》 D.《北京条约》 [判断题]灭火战斗中,消防人员实施破拆主要目的是为了实施准确的火情侦察、抢救人命和疏散保护物资及控制火势发展。( )
A.正确 B.错误 [填空题]面罩有( )和( )两种。
[单选题]10kV/400kVA 及以下的变压器宜采用支柱上安装,支柱上变压器的底部距地面的高度不得小于( )m。
A.2 B.2.5 C.3 D.5 我来回答: 提交
|