液化石油气在车间空气中的最高容许浓度为()千克/立方米.
A、100
B、1000
C、500
参考答案:B
读短文,判断对(√)错(×)。
Hello, I'm Mingming. I'm in Class 2, Grade 5. I usually go to school by bus. Sometimes I ride my bicycle.
I like to play the piano. I like to wear my boots and umbrella on a rainy day. My favourite shape is a circle. I
always help my mother do the housework. I clean my room every day. Tomorrow is Saturday. I'm going to
play the guitar with my friends. We're going to learn a new song.
( ) 1. Mingming usually goes to school by bicycle.
( ) 2. His favourite shape is a circle.
( ) 3. He likes to play the piano.
( ) 4. He sometimes helps his mother.
( ) 5. Tomorrow he is going to play the guitar.
Sunday is the ______ day of the week. [ ]
A. one
B. first
C. oneth
D. onest