尾管固井下套管时,正反接头丝扣要光滑,可用手上卸扣,下井时用()上紧即可。
A、单大钳
B、猫头绳
C、双大钳
D、链钳
参考答案:D
阅读理解,判断正(√)误(×)。
Danny, Jenny and Li Ming are going on a trip to Beijing. They're on a train now. Looking out of the
window, Jenny sees a little red school, a big brown cow and a tall green tree. But Danny doesn't see them
at all. He's hungry. He sees a banana, some chicken, dumplings and soup. He eats fast. And then (然后) he
plays with a little baby behind him. They're quiet.
( ) 1. Danny, Jenny and Li Ming are on a train.
( ) 2. Jenny sees a little pink pig and a tall green tree.
( ) 3. Danny is thirsty. He eats fast.
( ) 4. The baby is on the train, too.
( ) 5. Danny and the baby are loud.
根据《合同法》的有关规定,下列选项中,债务人不能采取提存方式消灭债权债务关系的是______。
A.债权人要求延期履行的B.债权人下落不明的C.债权人无正当理由拒绝受领标的物的D.债权人死亡没有确定继承人的