雪上一枝蒿的临床中毒表现为()
A.心率缓慢
B.口唇发绀
C.腹泻
D.昏迷
E.胸闷
参考答案:A
根据汉意填入单词。
1. In (春天), we often go for a walk in the park.
2. There are four (季节) in a year.
3. (小心)! The school bus is coming.
4. It is snowy. We can (滑雪) on the snow.
5. I (戴上) my (围巾).
6. I (脱下) my (T恤衫).
7. The (风) blows the (树叶) off the trees.
8. Snow is (白色的).
9. (为什么) do you go (外面)?
10. (因为) I want to make (雪人).
牙轮钻头的工作原理是什么?