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【单选题】
X、Y、Z、R、W是5种短周期元素，原子序数依次增大，它们可组成离子化合物Z 2 Y和共价化合物RY 3 、XW 4 ，已知Y、R同主族，Z、R、W同周期．下列说法不正确的是（ ）A.
原子半径：Z＞R＞W
B.
X 2 W 6 分子中各原子均满足8电子结构
C.
气态氢化物沸点：H m Y＞H n R
D.
Y、Z、R三种元素组成的化合物水溶液一定显碱性
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】下列穴位中适宜治疗痰热惊风的处方是
A.
大椎、太冲、百会、风池
B.
太冲、丰隆、水沟、十宣
C.
神门、涌泉、印堂、中冲
D.
合谷、丰隆、大椎、风府
E.
印堂、神门、前顶、十二井穴.
【单选题】听力原文： Centuries ago, during the Middle Ages, most of the land in Europe was owned by many different kings and queens, princes and princesses, and lords and ladies. They did not all get along. They wer...
A.
Kings and queens, princes and princesses, and lords and ladies built castles in order to get more land.
B.
Around the outside of a castle, a moat was dug, which was often filled with water.
C.
A castle was built behind a thick and high stonewall, which was strong enough to stand the possible attack of enemies.
D.
If a drawbridge was pulled up, there was no way for people to enter the castle.
【简答题】患者女性，45岁，因饱餐后现右下腹疼痛而入院，诊断为胆囊结石，应忌食A. 蛋白食物B. 纤维食物C. 高热量食物D. 油腻食物E. 高维生素食物
【单选题】在手术室保护断离肢体的方法是( )
A.
浸泡在2~4℃的冰水中
B.
无菌敷料包扎后置入碎冰块中
C.
用肝素盐水灌注、冲洗后保存于2~4℃冰箱中
D.
无菌包扎后置入装有冰冻生理盐水的容器中
E.
结扎出血点,无菌敷料包扎冷藏
【单选题】Almost two thirds of the land in the northwest areas of the country ______ suitable for farming.
A.
are not
B.
is not
C.
can not
D.
not being
相关题目：
【单选题】下列穴位中适宜治疗痰热惊风的处方是
A.
大椎、太冲、百会、风池
B.
太冲、丰隆、水沟、十宣
C.
神门、涌泉、印堂、中冲
D.
合谷、丰隆、大椎、风府
E.
印堂、神门、前顶、十二井穴.