题目内容
听力原文： In 1977, a baby girl became seriously ill in Qatar, near Saudi Arabia. Doctors were unable to diagnose the cause of her illness with confidence, so she was flown to London and admitted to Hammersmith Hospital, where specialists help was available. She was then only semi-conscious and on the "Dangerously Ill" list. A team of doctors hurried to examine the baby only to discover that they too, were baffled by the very unusual symptoms. While they were discussing the baby's ease, a nurse asked to speak to them.
"Excuse me," said Nurse Marsha Maitland, "but I think the baby is suffering from thallium (铊) poisoning."
"What makes you think that？" Dr. Brown said. "Thallium poisoning is extremely rare."
"A few days ago, I was reading a novel called A Pale Horse by Agatha Christie," Nurse Maitland explained. "In this book, somebedy uses thallium poison, and all the symptoms are described. They're exactly the same as the baby's."
"You're very observant and you may be right," another doctor said. "We'll carry out some tests and find out whether it's thallium or not."
The tests showed that the baby had indeed been poisoned by thallium, a rare metallic substance used in making optical glass. Once they knew the cause of the illness, the doctors were able to give the baby the correct treatment. She soon recovered and was sent back to Qatar.
(23)
查看答案
搜索结果不匹配？点我反馈
更多问题
A．Economic reason.B．Business reason.C．Political reason.D．Religious reason.
Section B
Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You should decide on the best choice.
Not many of the elements occur in nature as pure substances, lying around waiting for someone to pick them up. A few do, and it is not surprising that these were known and collected for various uses in societies around the globe as far back as several thousand years B. C. Sulfur is one of those elements. It was known to burn with smelly results and have an odd appearance. Its use was probably confined to religious ceremonies. Carbon was also known since antiquity, because the charred (烧焦的) bones of animals and portions of partially burned trees consist largely of carbon in the form. of charcoal. Although we don't know all the uses primitive peoples made of charcoal, we do know that it was the key to releasing many other elements from their chemical combination in rocks. For example, if a copper-containing rock was heated in a hot fire with charcoal present, the carbon in the charcoal would combine with the other elements in the rock, leaving free metallic copper. In ways like this people were able to discover the elements copper, iron, lead, tin, and zinc, although they didn't necessarily appreciate that these substances were elementary. They just knew that they were useful
Iron also arrived occasionally from the heavens in the form. of iron-containing meteorites (陨石). Because of this, one might think that iron would have been thought of as a "heavenly" element, a gift from the gods. Instead, this honor has always fallen to the element gold. Gold doesn't fall from the skies, but it is found in its pure state in some places. It has the unusual property of never tarnishing (锈蚀) like other metals do. Gold objects don't rust, as iron does, nor do they turn green or black on the surface as do many other metals.
The ancient Egyptians used gold for jewelry and for coins. Gold is still used for jewelry, although pure gold is too soft for this purpose. Coins and jewelry, instead, are made of alloys. These are metals made by melting two or more metals in a pot together in such a way that they dissolve in one another. Gold coins are usually 90 per cent copper. An alloy of gold and silver is called white gold.
What's the main idea of the first paragraph？
A．He lives in the hotel.B．He lives in the same building.C．He lives in the first apartm
听力原文：W: Your Honor! I would like to bring the jury's attention to same points that I fool are relevant to the case at this time.
M: You may address the jury this afternoon. The court will now recess for one hour for lunch.
Q: Where is the conversation taking place？
(17)
微信支付 
支付宝支付