施工工艺技术标准可由企业自己制定,目前国家()技术标准。
A、已有
B、尚无
参考答案:B
读短文,选择。
In winter some people get sick in the cold weather. If you don't wear enough clothes, you will have a
cold. How does it feel if you have a cold? You will feel very tired. Your head may hurt badly. Your temperature (体温) will be higher. You may also have a fever. But don't worry too much, go to see a doctor first. Take some
medicine and stay in bed for a few days. And drink lots of hot water. Then you will get well soon.
1. People feel sick in winter because it's _____________.[ ]
A. warm
B. cold
2. If you have a cold you will feel _____________.[ ]
A. tired
B. happy
3. If your temperature is higher than 37℃, you will _____________.[ ]
A. have a cold
B. have a fever
4. If you are sick, you must _____________.[ ]
A. see a doctor
B. go to school
5. _____________ is good for you when you're sick.[ ]
A. Drinking hot water
B. Drinking cold water
疱疹样口炎的特征是()
A.一般1~5个溃疡,直径2~4mm,多发生于唇颊黏膜
B.多为单个大溃疡,直径超过1cm,多发于颊、软腭等处
C.数目多少,直径大小变化很大,可见明显的局部刺激因素
D.溃疡单发,病程长,呈潜掘状
E.多发溃疡可达几十个,直径1~2mm,亦可融合成片,多见于口底、舌腹黏膜