①上腔静脉②左心房③右心房④左心室⑤右心室⑥肺动脉⑦肺静脉
A:①②④⑥
B:①③⑤⑥
C:①②⑤⑥
D:①③⑤⑦
下列说法错误的是( )
In Sweden, people don't need to _______ too much money on presents, instead, making a meal is enough.