A hospitalized client craves a drink while withdrawing from alcohol. Which of the following measures is the best way to help the client resist the urge to drink

A. A routine search of visitors.
B. A locked-door policy.
C. One-to-one supervision by the staff.
D. Support from other alcoholic clients.

下图是细胞模式图，请根据图示回答问题。

（1）图中乙细胞最外层①是________。

（2）②是________，控制着物质的进出，③是________，其中储存着遗传信息。

（3）含有细胞液的结构是_____（填图中的数字序号）。

（4）图中甲细胞没有结构⑥，你认为该结构最可能是________。