熔点低于100℃的添加剂有()。
A、Cast
B、GMS
C、二氧化硅
D、1010
参考答案:B
根据图片将句子补充完整。
1. 2. 3. 4. 5.
You can find out about the weather on this 1._____. Yesterday, I had one 2. _____
for breakfast. Look, this is my mother. She is 3._____ _____. She likes to 4._____ _____
every Friday night. He is my brother. He likes 5. _____ _____.
加油站汽油质量变化的主要原因是因为汽油中含有一定量的不饱和烃。()