【判断题】层酥面团主要是由水油面和干油酥两块性质不同的面团经过包、擀、叠等开酥方法制成的具有酥软层次结构的面团。
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【简答题】Mail-order Advertisement Moonlight Company Products for a Sale Environment A2477-HAND SOAP You are going to love this natural soap. There are no chemicals in it .It is very good for your hands and f...
【简答题】Look at this mail-order advertisement: SUNSHINE COMPANY Products for a Safe Environment A2477—l You're going to love this natural soap.There are no chemicals in it.It is very good for your hands...
【简答题】(15分) X、Y、T、Q 四种元素,位于元素周期表前四周期,元素的性质或结构信息见下表。 元素 性质或结构信息 X 单质为双原子分子,分子中含有3对共用电子对,常温下单质气体性质稳定,但其原子较活泼。 Y 二价阳离子的外围电子层排布为3d 9 T 原子核外s轨道电子总数等于p轨道电子总数;人体内含量最多的元素,且其单质是常见的助燃剂。 Q 第三周期主族元素中原子半径最小。 请根据上述信息回答下列...
【单选题】第三节 短文理解2 阅读下列短文,从[A]、[B]、[C]三个选项中选择一个正确答案。 Henry was in London for a holiday. He stayed in an old woman's house. One day he was not feeling well, so he went to the old woman and said, 'I must go to s...
【简答题】有A、B、C、D、W五种元素.W的原子序数为29,其余的均为短周期主族元素;其中A、B、C属于同一周期,A原子最外层p能级的电子数等于次外层的电子总数;B原子最外层中有两个未成对的电子;C元素氢化物与其最高价氧化物对应水化物之间反应生成一种盐;D原子核内的质子数与中子数相等,能与B形成DB 2 、DB 3 常见化合物.根据以上条件,回答下列问题: (1)推断元素名称:A______. (2)C元素...