自燃物品按自燃的难易程度及危险性大小，可分为（）类。A、5 B、4 C、3 D、2

综合填空(词首字母已给出)。

     Jack was a pupil.One day his teacher g _1_ each of them a seed (种子) and ask them to plant it.So

Jack went to his g__2__and wanted to dig a hole f__3_the seed.He dug and dug.After a while he f_4__

a coin.He was very g__5_and put it in his pocket.A minute l__6__,he found another coin,he put it in his

pocket again.The same thing happened several t__7_.Jack was so happy that he thought he should

c_8__how many coins he had got.He put his h_9__ in his pocket.To his s_10_,he found a hole in his

pocket.

下列有关舌 * * 的描述，错误的是（）

A.丝状 * * 司一般感觉

B.菌状 * * 司味觉

C.轮廓状 * * 位于界沟前方

D.叶状 * * 位于舌侧缘后部

E.舌后1／3 * * 较少

商业银行代保管业务包括（）业务和保管箱业务。(三级)

X6132型万能铣床圆工作台回转运动调试时，主轴电机启动后，进给操作手柄打到零位置，并将（）打到接通位置。

A、SA1

B、SA2

C、SA3

D、SA4

介质传播