餐饮服务提供者应当制定并实施（），确保所购原料符合食品安全标准。A.原料采购质量标准

有关交界痣的概念和特点，错误的是（）。

A.交界痣是指痣细胞集中分布在表皮、真皮的交界位置

B.是指处于良恶性交界状态

C.交界痣可发展为黑色素瘤

D.交界痣可分布于任何部位

E.交界痣应该手术切除

根据短文内容及首字母的提示，填写所缺单词。

Mr. Martin went into a coffee shop one morning, and sat a 小题1:. Many others came in, but most of them did not stay long.

After fifteen m小题2:, a young man and a young woman came in. There were only two e 小题3:  seats at the counter, one on Mr. Martin’s left, and the other on his r小题4: .So Mr. Martin offered  to change places w小题5: the man, so that the man and the young woman could be t小题6:.

“Oh, that isn’t necessary,” the young man said. But Mr. Martin still wanted to c小题7:. When  they were side by side, the man said to the woman, “Well, this gentleman wanted us to s 小题8:  together, so may I introduce m 小题9: ? My name is Tom. What’s y小题10:?”

当公司不能成立时，股份有限公司的发起人在承担相应费用后，可以收回投资款项和财产产权。 ( )

导游活动的政治意义表现在哪些方面？

肺炎时容易并发脓胸、脓气胸的常见病原体是（）

A.肺炎球菌

B.溶血性链球菌

C.金黄色葡萄球菌

D.铜绿假单胞菌

E.白假丝酵母菌