A client with cholecystitis is receiving propantheline bromide. The client is given this medication because it（）

A. reduces gastric solution production and hypermobility.

B. slows emptying of the stomach and reduces chyme in the duodenum.

C. inhibits contraction of the bile duct and gallbladder.

D. decreases bile secretions.

尼龙绳、尼龙带安全系数可根据工作使用状况的重要程度选取，但不得小于6。