物质受到光的照射作用,是否发生化学反应,与物体本身是不是光敏物没有关系。
参考答案:错
单词辨音(5分)
A B C D
( ) 1 wooden bookcase wool cool
( ) 2 arrive capital printer sink
( ) 3 forward visitor pork fork
( ) 4 least area each teacher
( ) 5 thousand outside ground country
( ) 6 also chalk already salt
( )7 flower shower below town
( )8 shop coffee tomorrow worry
( ) 9 bath north eighth youth
( ) 10English bring orange uncle
上颌第一磨牙牙冠面的牙尖从大到小的顺序是()
A.近中舌尖>近中颊尖>远中颊尖>远中舌尖
B.近中舌尖>近中颊尖>远中舌尖>远中颊尖
C.近中颊尖>近中舌尖>远中舌尖>远中颊尖
D.近中颊尖>近中舌尖>远中颊尖>远中舌尖
E.远中颊尖>近中舌尖>远中舌尖>近中颊尖