【单选题】强氧化剂与有机物、镁粉、铝粉、锌粉可形成爆炸性混合物,以下哪种物质是安全的?
【简答题】听下面一段材料,回答第1至4题。 1. What is this speech about? A. A special group. B. A new class. C. A concert. 2. How often will everyone meet each week? A. One time. B. Three times. C. Five times. 3. What will a p...
【简答题】制定我国《食品安全法》的根本目的是保障公众身体健康和生命安全,其前提是:() A、保证食品安全 B、保障食品生产者利益 C、保护食品正常出口 D、严惩违法行为
【单选题】制定我国《食品安全法》根本目的是保障公众身体健康和生命安全,其前提是( )。
【单选题】What is the topic of this speech?
A.
Measures to strengthen the contact between parents and schools.
B.
Measures to improve children’s behavior in school.
C.
Measures to strengthen teachers’ authority.
D.
Measures to protect teachers from false allegations against them.
【单选题】What is this speech for?
A.
Introducing cultural programs
B.
Telling stories of Beijing history
D.
Praising women football team
【单选题】我国制定《食品安全法》的根本目的是保障公众身体健康和生命安全,其前提是( )。
【单选题】强氧化剂与有机物、镁粉、铝粉、锌粉可形成爆炸性混合物,以下物质安全的是( )。
【简答题】听下面一段材料,回答第1-4题。 1. What is this speech about? A. A special group. B. A new class. C. A concert. 2. How often will everyone meet each week? A. One time. B. Three times. C. Five times. 3. What will a p...