包虫病最常见的临床类型是()A．脑包虫病 B．肺包虫病 C．肌肉包虫病 D．肝包虫病

某纯碱样品中含有少量氯化钠。为测定样品中碳酸钠的质量分数，现称取该样品11g，加入到盛有50g稀盐酸的烧杯中，恰好完全反应，最后称得烧杯中溶液的质量为56.6g。计算：

（1）完全反应后生成CO₂的质量；

（2）纯碱样品中碳酸钠的质量分数。（结果精确到0.1%）

将《说文解字》开创的540部首改为214部首的著作是（）。

A.《字汇》

B.《正字通》

C.《康熙字典》

D.《佩文诗韵》

在下列交易行为中，需缴纳土地增值税的是______。

A．企业销售商品房
B．农村居民出售自有住宅
C．转让集体土地承包经营权
D．房地产赠与

链传动可用在两轴中心距（）的场合。

A.较大

B.较小

C.一般

D.无要求

(B)

My father was chief engineer of a merchant ship, which was sunk in Word War Ⅱ, The book Night of the U-boats told the story.

Memories

In September, 1940, my mother, sister and I went to Swansea, where my father’s ship was getting ready to sail. We brought him a family photograph to be kept with him at all times and keep him sale.

Then I remember my mother lying face down, sobbing. She had heard from a friend that the ship had been sunk by a torpedo(鱼雷).

I can remember the arrival of the telegram (电报), which in those days always brought had news. My grandmother opened it. It read, "Safe. Love Ted."

My most vivid memory is being woken and brought down to sit on my father’s knee, his arm in a bandage.

He was judged unfit to return to ea and took a shore job in Glasgow for the rest of the war. For as long as I can remember, he had a weak heart. Mother said it was caused by the torpedoes. He said it was because of the cigarettes, whichever, he died suddenly in his early 50s.

Ten years later I read Night of the U-bouts and was able to complete the story.

Torpedo

One torpedo struck the ship; Father was in the engine room, where the third engineer was killed. He shut down the engines to slow the ship making it easier for it to be abandoned.

By the time he got on desk (甲板) he was alone. Every lifeboat was gone except one which had stuck fast. When he tried to cut it free, it swung against the ship, injuring his hand and arm. He had no choice but to jump—still with the photograph in his pocket.

Three days later, he and other survivors were safe in Glasgow. All 23 with him signed the back of the photograph.

A Toast

In my room is the book and the photograph. Often, glass in hand; I have wondered how I would have dealt with an explosion, a sinking ship, a jump into a vast ocean and a wait for rescue Lest(以免)we forget, I have some more whisky and toast the heroes of the war.

What is the message mainly about（）

A.A group of forgotten heroes.

B.A book describing a terrifying battle.

C.A ship engineer’s wartime experience.

D.A merchant’s memories of a sea rescue.