deep venous thrombosis 指( )。
The study estimated that there are a(n) 【C9】______ of 30 in-flight medical emergencies on U.S. flights every day. Most of them are not 【C10】______ fainting and dizziness are the most frequent complaints. 【C11】______ 13% of them— roughly four a day are serious enough to 【C12】______ a pilot to change course. The most common of the serious emergencies 【C13】______ heart trouble, strokes, and difficulty breathing.
Let's face it: plane rides are 【C14】______ . For starters, cabin pressures at high altitudes are set at roughly 【C15】______ they would be if you lived at 5,000 to 8,000 feet above sea level. Most people can tolerate these pressures pretty 【C16】______ , but passengers with heart disease 【C17】______ experience chest pains as result of the reduced amount of oxygen flowing through their blood. 【C18】______ common in- flight problem is deep venous thrombosis— the so-called economy class syndrome (综合症). 【C19】______ happens, don't panic. Things are getting better on the in-flight- emergency front. Thanks to more recent legislation, flights with at 【C20】______ one attendant are starting to install emergency medical kits to treat heart attacks.
【C1】
A.called
B.addressed
C.informed
D.surveyed
She is __________ interested in physics. She often works at it until__________into the night.[A]deep; deep [B]deep; deeply[C]deeply; deep [D]deeply; deeply
When Beth is writing a letter , she looks deep in _____ .
A.thinking
B.thought
C.mind
D.recall
A.be allowed
B.allowed
C.allowing
D.are allowed
A.How much the cut hurt.
B.How deep the cut was.
C.How easily he was cut.
D.How concerned the woman was.
Although he was (deep) ______ hurt by what she said to him, he made no reply.