卡介苗是()
A.是纯蛋白衍生物
B.是活的人型结核杆菌疫苗
C.是死的减毒牛型结核菌疫苗
D.是活的人减毒牛型结核菌疫苗
E.是活的减毒牛型结核菌疫苗
参考答案:E
Think and fill in the blanks. 填空。
1. — do you go to school? —By bus.
2. — do you live? —In a house.
3. — are you? —I'm 12 years old.
4. —How are you? —I'm 1.2 metres tall.
5. — your address? —121 Park Road.
试饼法是观测水泥砂浆试饼的外形变化程度。