问题
单项选择题
要明确诊断，最需做的检查是
A．血常规
B．血磷测定
C．血胆碱酯酶活性测定
D．尿有机磷分解产物测定
E．胸X线
答案
参考答案：C
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要明确诊断，最需做的检查是
A．血常规
B．血磷测定
C．血胆碱酯酶活性测定
D．尿有机磷分解产物测定
E．胸X线
参考答案：C
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| Most American families like to have a holiday in summer. Summer is a good season 1 holidays. It is very 2 during (在……期间) the months of July and August. Children do not go to school during these 3 months. Some 4 like to stay at home during the holiday. They work in the garden, visit friends, 5 books, or 6 TV. Many families 7 their lunch to a park or somewhere far 8 the city. They like to eat where there are many trees or there is a nice lake. If they live near the sea, they often go to the beach. They can fish, swim or enjoy the sun there. America is a large country. Many families travel by 9 or by train to see interesting places. They also travel by plane to a foreign country. Many big cities have many famous buildings, theatres, shops and other places 10 travellers (旅行者). | ||||
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