PH值指（）的酸碱性。

阅读下面短文，然后根据括号内所给汉语的意思写出单词的正确形式（每空一词）。

Dear Sunny Day Travel Agency,

    I want to take a holiday this winter. I have been to many fascinating 1.             (名胜). This time I

want to go somewhere that is 2.            (充满活力的). I'd like to take a plane, because the 3.           

 (快) way of traveling is by plane. I can speak English, Spanish and 4.             (法语). I enjoy fishing,

camping, 5.             (参观) museums and meeting new people that are 6.             (友好的). I love

great restaurants. I like eating 7.             (健康的) food, especially the food that 8.             (尝起来)

good. I think I might want a tour guide so I don't get 9.             (迷路).

    Can you give me some 10.             (建议) for holiday spots? Please tell me. 

                                                                                                                                       Yours, 

                                                                                                                                        Lucy

To prepare for the Olympic Games in summer, London ____ its largest ever exercise to test the response of emergency services.

A．planned

B．is planning

C．had planned

D．plans

“太宗皇帝真长策，赚得英雄尽白头。”（唐·赵嘏《唐摭言》）此句是对唐太宗时哪项政策的评价？ [ ]

A．科举制

B．九品中正制

C．世袭制

D．察举制

兼有局麻作用的中枢性镇咳药是

A．苯佐那酯
B．喷托维林
C．色甘酸钠
D．异丙肾上腺素
E．倍氯米松

承包人在确定变更后14天内不提出变更工程价款报告时，视为该项设计变更( )。

A．发包人决定是否调整合同价款和调整的具体金额

B．涉及合同价款的变更，由工程师确定

C．涉及合同价款的变更，由承包方确定

D．不涉及合同价款的变更