氨浓度达到最大值时的反应温度就是氨合成反应的最适宜温度。()
参考答案:对
读地球公转示意图回答:
(2)地球公转一周所需时间为_________。
(3)地球运行至A点时,北半球节气为_______日,时间为_____月_____日前后,这一天济南的_____最长,_____最短。
(4)地球运行至_____点时,济南春暖花开,昼夜_______。
(5)今天,地球公转在字母_____与_____所表示的位置之间。
句型转换。
1. Michael had a temperature because of the bad weather. (改为同义句)
Michael had ____ ____ because of the bad weather.
2. Tom's mother looks worried. (对画线部分提问)
____ does Tom's mother ____?
3. The novel ends with happiness. (对画线部分提问)
____ ____ the novel end with?
4. The boy will be able to go to school next year. (改为否定句)
The boy ____ ____ able to go to school next year.
5. He must stay at home to care for his grandpa. (改为同义句)
He must stay at home to ____ ____ his grandpa.