通信量分析攻击可以确定通信的位置和通信主机的身份，还可以观察交换信息的频度和长度。这

阅读下文，判断下列句子是否符合短文内容，符合的用“A”，不符合的用“B”。    

     A man named Nick went on a fishing holiday. Fishing was his favorite sport, and he had many prizes for

  fish he had caught.

    One summer, the weather was nice and the fishing was supposed to be good, so he decided to travel

 around the country, spending a few days fishing in the river.

    Unfortunately, he wasn't so lucky that he caught only a few small fish.  Later, he heard of a large river

 that was full of fish nearby.

    He found the river quite easily and it flowed through a farm. He decided to ask the farmer's permission

 （许可）to fish in the river.

    "You have my permission," the farmer said, "but you should be careful. For years I stopped my kids

 from going near that river."

    "Is the river dangerous?" Nick asked.

   "It's not the river," the farmer said, "It's the fish. They're so big that my kids couldn't hold them."

    Nick was very excited. All fishermen wanted to catch really big fish.

    "How big are they?" he asked.

    "Well," the farmer told him.  "Last week I lost one over three feet long, and yesterday I lost one just

 over four feet long.”

     "What bad luck!" Nick said. "I hate losing a big fish once I've hooked him."

    "Who's talking about fish?" the farmer said angrily. "It's two of my kids that I lost!"

( ) 1. Nick's favorite sport is fishing.

( ) 2. When Nick was traveling around the country, the weather was rainy.

( ) 3. The farmer didn't let Nick fish in the river.

( ) 4. There are real big fishes in the river that is through the farm.

(     ) 5. The farm's two sons had lost their lives.

男性，55岁，有吸烟嗜好，每日1包。曾患肺结核疾病，两个月前因高热、呼吸困难住院，诊断为结核性胸膜炎，治疗后胸片示左侧胸腔内大量积液。穿刺抽出脓液，给予胸腔抽脓及全身抗菌药物治疗，病人体温正常后要求出院，未进一步做胸片检查。病人主诉近来一直咳嗽，食欲不好，并日渐消瘦。体检发现胸廓内陷，呼吸运动减弱，肋间隙变窄，听诊示呼吸音减弱。支气管偏向左侧。RBC3×10⁹/L，Hb6.5g/L。

该病人的护理措施不正确的是（）

A.鼓励病人有效咳嗽、排痰

B.用较细的引流管进行引流以便减少刺激，减轻疼痛

C.指导病人作腹式深呼吸

D.可给予少量多次输血

E.行胸膜纤维板剥脱术后应严密观察生命体征

在道路水泥技术要求中对初凝时间规定较长（）干缩率（）磨耗量（）。

根据经验，为了满足船舶具有适度的稳性，对具有三层舱的船舶来说，其底舱应占全部货量的（）。

A.30%

B.40%

C.55%

D.70%

及时补充储罐内的LNG，（）的工艺措施，可减少泵气蚀。

A、增大净正压头

B、升高液温

C、储罐排气

D、变更调压参数