两个渐开线直齿圆柱齿轮，若齿轮A的模数为4mm，齿轮B的模数为3mm，则下列说法中错

用延续性动词改写下列句子。

1. The man has left China. The man has _____ _____ _____ China for 20 years.

2. The movie has finished. The movie has _____ _____ for half an hour.

3. I have borrowed the book. I have _____ the book for a month.

4. He has joined the Party. He has _____ _____ the Party for 30 years.

5. I have bought the bike. I have _____ the bike for 6 years.

The trucks passing up and down the street are        damage to our house and historic interest.     [ ]

A. doing              

B. raising      

C. putting              

D. producing

男，68岁，间断全程无痛性肉眼血尿半年，无其他不适。查体：双侧肾区未及肿物，无叩击痛，右侧阴囊可及蚯蚓状团块，平卧后不消失。下列哪项检查最有助于明确诊断（）

A.静脉肾盂造影

B.B超检查

C.膀胱镜检查

D.阴囊多普勒超声

E.腹部X线平片

安全防护距离一般有内部安全距离和外部安全距离之分，其主要区别在于（）的标准。

在进行图像编辑时，在【通道】面板中单击按钮创建的新通道都是（）。

A.复合通道

B.专色通道

C.颜色通道

D.Alpha通道