异质人工授精所生的子女与父母亲，至少有（）没有血缘关系。
参考答案：一方
–Mr Li, I found a watch on the playground.
-You should try to find out ______.
A．whose is the watch
B．who is the owner of the watch
C．whom does the watch belong to
D．who the owner of the watch is
—Does Peter have a tennis racket?
— ________ . But he has some tennis balls.
A．Yes, he does.
B．No, he doesn’t.
C．Yes ,she does.
D．No, she doesn’t.
