书面表达。 随着社会的发展和我国加入WTO，英语成了中外交流的桥梁。而互联网的

阅读再判断正误。

It’s 5:30 in the afternoon. School is over. It’s time for student to relax.

Look! Some boys are playing soccer and some are playing basketball on the playground(操场). Most girls don’t like ball games because they think they are boring. They like to do other sports, such as swimming and dancing. Look, some girls are swimming in a big swimming pool. In the gym(健身馆), Maria and her friends are dancing to the music. Some students are singing together in the classroom building. Who are they? Oh, they are some students of Class Four. They are cleaning their classroom now. After that, they can play with other students.

根据上面内容判断正误，正确的写T， 错误的写F。

小题1: After 5:30pm, the students don’t have classes.

小题2: On the playground, some boys are playing basketball and soccer.

小题3:We can’t see any students swimming in the pool now.

小题4: Some students from Class Four are singing together in the classroom.

小题5: Maria is dancing on the playground.

PTCD术的并发症有（）

A.胆道出血

B.造影剂过敏

C.逆行胆道感染

D.气胸

E.胆汁漏

东亚季风气候显著，季风环流典型，其形成原因是

A 由海陆热力性质差异造成的

B 副热带高气压带的移动造成的

C 极地冷高压的移动造成的

D 不同锋面的造成的

X、Y、Z、W为按原子序数由小到大排列的四种短周期元素．已知：①X可分别与Y、W形成X₂Y，X₂Y₂、XW等共价化合物；②Z可分别与Y、W形成Z₂Y、Z₂Y₂、ZW等离子化合物．

请回答：

（1）Z₂Y的化学式是 ．

（2）W的原子电子排布式是 ．

（3）如图所示装置，两玻璃管中盛满滴有酚酞试液的ZW饱和溶液，

C（I）、C（II）为多孔石墨电极．接通S₁后，C（I）附近溶液变红，两玻璃管中有气体生成．一段时间后（两玻璃管中液面未脱离电极），断开S₁，接通S₂，电流表的指针发生偏转．此时：C（I）电极的名称是 _（填“正极”或“负极”）；C（II）电极的反应式是 ．

（4）铜屑放入稀硫酸中不发生反应，若在稀硫酸中加入X₂Y₂，铜屑可逐渐溶解，该反应的离子方程式是 ．

房地产代理合同是以被代理人确定委托代理权限和代理人接受授权为合同的成立条件的，属于：( )。

A．法定代理
B．委托代理
C．受托代理
D．指定代理