()
A.
B.
C.
D.
参考答案:A
读句子,判断正(√)误(×)。
( ) 1. Cats can fly.
( ) 2. A bird has wings.
( ) 3. Rabbits can hop.
( ) 4. Fish can't swim.
( ) 5. A dog has fur and a mane.
压力容器的破坏形式通常分为()
A、韧性破坏
B、爆炸破坏
C、脆性破坏
D、疲劳破坏