当代中国最大的国家利益是实现社会主义现代化。

膏淋与尿浊的鉴别要点是（）

A.浑如米泔

B.淋沥不尽

C.疼痛涩滞

D.小腹拘急

E.以上都不是

During the day we work and play; at night we sleep. Our bodies rest while we sleep. In the morning we are ready to work and play again. While we are asleep, our bodies grow most. Children who are tired usually need more sleep. We can get our lessons better and we feel better too, when we have had plenty of rest. Boys and girls who are eight or nine years old need ten hours of sleep every night. Our bodies need plenty of air when we sleep. If we do not get enough fresh（新鲜的）air we’ll feel tired when we wake up. While in bed we must not cover our heads. If we do, our lungs（肺）will not get enough fresh air. If we open our windows at night we can have plenty of fresh air. Cool air is better than warm air. Boys and girls who want to grow and be strong must get plenty of sleep.

小题1:Our bodies grow most while we are _______.

A．eating

B．playing

C．sleeping

D．waking小题2:Which is better for us at night?

A．Hot air

B．Cool air

C．Warm air

D．Dry air小题3:Too little sleep makes us ________.

A．happy

B．hungry

C．tired

D．grow小题4:How much sleep should boys and girls of nine years have every night?

A．Eight hours

B．Nine hours

C．Ten hours

D．Eleven hours小题5:What do the lungs need most?

A．Fresh air

B．Food

C．Rest

D．Exercise

用同一均匀的热源加热水的质量和温度变化的图线（如图所示），请回答下列问题：由图中可知，加热时间t₁、t₂和t₃的大小顺序是 ______；若t₃=30s，则t₂=______s，t₁=______s．

建设工程项目的施工质量计划应经施工企业（）审核批准后，才能提交工程监理单位或建设单位。

A．项目经理

B．法定代表人

C．项目经理部技术负责人

D．技术负责人

增感屏结构中反射层的作用是（）

A.提高发光效率

B.提高清晰度

C.改善颗粒度

D.控制量子斑点

E.提高对比度