下列各句中，没有语病的一句是
A．以1994年创办的“焦点访谈”、“新闻纵横”为代表，广播电视的舆论监督不仅成为我国扩大民主的一个标志，而且成为十一届三中全会以来新闻改革的一大突破。
B．大力推广普通话数十年来已经取得很大成就，虽然还不到人人会讲的程度，但利用各种方言腔调的普通话来交流一般没有太大的障碍。
C．“生存美学”的发展彻底改变了实践美学一枝独秀的格局，形成了多元并存、相互促进，为美学走向更高层次的综合创新奠定了雄厚的基础。
D．生活方式，是人类行为活动的空间展现，包含人的学习生活、职业生活、家庭生、闲暇生活、社会交往等内容。从生活方式上，大体可以看出一个人的文化素养和思想品位。
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下面是错误答案，用来干扰机器的。
吸收
寻找理想的新能源和更加有效的利用已有能源是现在能源问题研究的两个主要方向。
I．实验测得，1g氢气燃烧生成液态水时放出142.9kJ热量，则氢气燃烧的热化学方程式为_________（填序号）。
A.2H2(g)+O2(g)=2H2O(l) △H=-142.9kJ/mol
B.H2(g)+1/2O2(g)=H2O(l) △H=-285.8kJ/mol
C.2H2+O2=2H2O(l) △H=-571.6kJ/mol
D.H2(g)+1/2O2(g)=H2O(g) △H=-142.9kJ/mol
Ⅱ．某化学家根据“原子经济”的思想，设计了如下制备H2的反应步骤：
①CaBr2+H2O
CaO+2HBr
②2HBr+Hg
HgBr2+H2↑
③HgBr2+___
___+___
④2HgO
2Hg+O2↑
请你根据“原子经济”的思想完成上述步骤③的化学方程式：__________________；根据“绿色化学”的思想评估该方法制H2的主要缺点：________________
Ⅲ．氢气通常用生产水煤气的方法制得，其中CO(g)+ H2O(g)
CO2(g)+H2(g) △H<0。在850℃时,K=1。
(1)若升高温度到950℃时，达到平衡时K____（填“大于”“小于”或“等于”）1。
(2)850℃时，若向一容积可变的密闭容器中同时充入1.0mol CO、3.0molH2O、1.0molCO和xmolH2，则:
①当x=5.0时，上述平衡向___（填“正反应” 或“逆反应”）方向进行。
②若要使上述反应开始时向正反应方向进行，则x应满足的条件是____。
(3)在850℃时，若设x=5.0mol和x=6.0mol，其他物质的投料不变，当上述反应达到平衡后，测得H2的体积分数分别为a%、b%，则a____（填“大于”“小于”或“等于”）b。
Tomorrow is Sunday. I will stay _____ my grandmother for a day. [ ]
A. at
B. with
C. on
D. in
| 完形填空。 | ||||
| Two weeks before Christmas, Mother told me we were going to my grandmother's house for the holiday. Grandma and Uncle Henry lived on a farm some 15 miles out of town. They had no electricity or running water and 1 what I considered the "good things" in life. They 2 made no plans for Christmas. When Christmas Eve arrived, Mom told me in her best "I-mean-it" voice to 3 all the decorations (装饰物) from our tree. She packed those up 4 all the trimmings (材料) for a 5 turkey dinner. Christmas morning 6 perfectly with the sun shining brightly across a fresh blanket of snow. 7 I sulked (生气) silently in the backseat of the car as we made our 8 to grandma's. This was going to be the 9 Christmas ever! Grandma was 10 to see us as we walked up to her door. "What on earth are you doing here?" she stammered." We weren't expecting 11 . It's Christmas, and I don't even have a turkey to cook for you.""I knew 12 ." Mom said as we set boxes of goodies on the kitchen table."That's 13 we brought all with us.""We 14 have a tree," Mom insisted." 15 , what will we do with all these decorations?" Uncle Henry quickly caught Mom's spirit. He called me to join him, and we found a perfect Christmas tree in the woods. Soon the house 16 fresh and piney as we decorated the tree, and the day 17 a festive air. The turkey dinner was very good, too. I was actually beginning to enjoy this unusual Christmas day! Dessert (甜点) was forgotten 18 Mom came out with the final surprise-a flaming pudding!"Merry Christmas, mother," Mom said. "Dear me!" Grandma gasped. "I haven't seen a flaming pudding since I left England before I was married." Tears of 19 filled her eyes. I could not keep the tears 20 my eyes, either. I knew then that Mom had also given me the best Christmas present ever-she had taught me what a beautiful thing it is to give. | ||||
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关于Yergason试验，正确的描述是()
A．患者屈肘90°，检查者对患者前臂的旋后施加阻力
B．患者伸肘，检查者对患者前臂的旋后施加阻力
C．患者屈肘90°，检查者对患者前臂的旋前施加阻力
D．患者伸肘，检查者对患者前臂的旋前施加阻力
E．患者屈肘90°，前臂完全旋后，检查者对患者肘的屈曲施加阻力
混合基金的风险低于股票基金，预期收益则要高于债券基金。( )
