某公司进口货物应缴纳关税20000元．增值税30000元．海关于2001年4月27日

前期差错的重要程度应根据差错的性质和金额加以具体判断。()

阅读短文，判断正误，对的(T)，错的(F)。

     A boy goes to study in Japan. He finds a part-time job in a restaurant. Many Japanese students also

 work there. Their job is washing dishes (餐具).It's an easy job, but the boss (老板) says: "You must

  wash every dish seven times."At most ,the student is careful. The boss is happy with him .After one

 month, the boy finds that the boss doesn't check (检查) very often. He thinks, "There's no difference

 between five times and seven times." So he just washes five times. He works very fast. The boss is even

 happier. One day, a Japanese student asks him why he can wash so fast The student tells him the secret.

 The Japanese student is surprised  (吃惊的)  but doesn't say anything.

      A few days later, the boss knows about it and fires  (解雇)  the boy. The boy goes to other

  restaurants, but all of them say, "Go away!  You are not honest (诚实的). We don't need you. " The

 boy  is sad, but he can do nothing now.

( ) 1. The boy works as a cook in a restaurant.

( ) 2. The boss wants the young man to wash the dishes five times.

( ) 3. A month later, the young man washes the dishes five times and he works very fast.

( ) 4. The Japanese student tells the boss about the young man's cheating.

( ) 5. The young man is not an honest person.

十进制数2344用二进制数表示是

A．11100110101

B．100100101000

C．1100011111

D．110101010101

不属于弥漫性结缔组织病的是（）。

A.系统性红斑狼疮

B.硬皮病

C.类风湿性关节炎

D.强直性脊柱炎

E.干燥综合征

______是建立假说的有效工具。

A．因果图

B．排列图

C．对策表

D．散布图