挂钩型货叉的上部有定位销，用于固定货叉在叉架上的（）。

1×9=9

12×9=108

123×9=1107

1234×9=11106

12345×9=______

123456×9=______

1234567×9=______．

The police found that the house _______and a lot of things _____[   ]

A. has broken into; has been stolen      

B. had broken into; had been stolen

C. has been broken into; stolen        

D. had been broken into; stolen

平衡计分卡的特点

下列树种中具有枝刺的为（）。

A.山皂荚

B.刺槐

C.红刺玫

D.蔷薇

以下哪项不是防爆电气设备防爆标志的组成部分？（）

A、防爆型式

B、温度

C、设备类别

D、湿度