If two men suspected for some reason they have a common ancestor, ______ .
A: we can decide according to their family tree
B: we can find the truth from their genetic markers
C: we can compare the differences in their Y chromosome
D: we can look for written records to prove their relationship
A: we can decide according to their family tree
B: we can find the truth from their genetic markers
C: we can compare the differences in their Y chromosome
D: we can look for written records to prove their relationship
举一反三
- We can distinguish between synonyms according to the differences of their connotations.
- Through part-time jobs we can have our own money. Using the money we can go travelling. We can buy things we like. We needn’t take money from our parents.
- Now that we have a computer, we can ____________ everything we need easily. A: look on B: look in C: look up D: look down
- We can have a decision tree that has more than two decision per node.
- What can you learn from the example of Vera Wang? We can learn from the example of Vera Wang that we should ________ ourselves. By doing so, we are more likely to find an ________ we don't know we have, and it may help us sbuild a __________ future.