-Is thiskey? -No, that one iskey. A. my,

The new driving test seems to be challenging，so the chances ________ he can pass it at the first attempt are small.

A．how

B．whether

C．that

D．where

下面的哪一种情况不会使应收账款与日销售额比指标异常偏高？ （）

A、年末销货额大量减少

B、大量的现金销货

C、卖出大量应收账款

D、年末销货额大量增加

—What do you think of your English teacher?

—I love her. She is really _____. She always has a smile on her face. [ ]

A. outgoing

B. funny

C. friendly

D. serious

在一定的周期内，将不同作物按顺序在同一田块上逐年轮换种植的作法叫（）

A、间作

B、套作

C、轮作

D、以上答案都不正确

当用户发出查询数据库数据的命令时，数据库管理系统不需要进行的检查是

A．语法检查

B．语义检查

C．用户存取权限检查

D．，数据完整性检查