小麦种子内储存的化学能来自太阳能，刚刚收获的小麦种子堆积贮存久了会发热，小麦种子

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小题1:Paris is the capital and largest city of France,________ (坐落在)on the River Seine.

小题2:Fires caused by the California Earthquake did the most___________(损失).

小题3:F__________(幸运地), we put all the fires out quite quickly.

小题4:Confucius is the philosopher whose_______(影响) is the greatest.

小题5:Mencius was a thinker whose teachings were very________ (类似；相似) to those of Confucius.

小题6:Our teacher often stresses the___________ (重要性) of studying English.

小题7:You are___________(绝对地；完全地) right.

小题8:The earthquake in 1956 a________(影响) eight provinces.

小题9:The_________(以前的) owner of the flat is an old man.

小题10:Many people were made____________(无家可归的) after the earthquake.

小题11:The flood hit the city yesterday , __________(造成) three deaths.

小题12:We must protect____________(环境).

小题13:We________ (经历) a lot of difficulty in selling our house the other day.

小题14:s.

小题15:This river is one of the most p_______ (受到污染的) areas in that region.

环氧乙烷精制塔回流泵定期切换的目的是（）。

A、检查备用泵的好坏

B、防止泵壳内环氧乙烷聚合

C、对运行泵作维护

D、已出现故障，需检修

小文阅读了一些物质的密度表后，得出以下结论中正确的是  

A．固体的密度总是大于液体的密度

B．同种物质在不同状态下，密度保持不变

C．若质量相等，则实心铜块的体积一定大于实心铅块的体积

D．若密度相同，则一定是同种物质

在一定条件下，反应N₂+3H₂2NH₃，在2L密闭容器中进行，5min内氨的物质的量增加了1mol，则反应速率为

A．υ(H₂)=" 0.3" mol/(L·min)

B．υ（N₂)="0.2mol/(L·min)"

C．υ(NH₃)="0.2" mol/(L·min)

D．υ (NH₃)=0.1mol/(L·min)

我国常采用的领先指标有( )

A．新收订单

B．建筑合同与许可

C．股票价格

D．工业原料价格

E．工业总产值