如电缆粗穿不进时,可将伸人器壁部分锉细,但护套与密封圈结合部位不得锉细,否则为失爆。()
参考答案:对
Read and judge. 判断下面说法是否正确,正确的写“T”,错误的写“F”。
My name is Sarah. I'm eleven years old. I'm from America. In the morning, I eat hot dogs for breakfast.
Then I go to school. I study (学习) very hard. In the evening, I always (总是) watch TV before (在……之前)
supper. At 9:00 p. m., I go to bed.
( ) 1. Sarah is ten years old.
( ) 2. In the morning, Sarah eats hamburgers.
( ) 3. She goes to bed at 9:00 in the evening.
( ) 4. She always does her homework in the evening.
( ) 5. Sarah has hot dogs for her breakfast.
蔷薇科分为()亚科、()亚科、()亚科、()亚科。