如图所示，蛛网膜下隙穿刺时，穿刺针穿过的组织层次为（）
A.皮肤、皮下组织、棘上韧带、棘间韧带、黄韧带、硬膜外腔、硬膜
B.皮肤、皮下组织、棘上韧带、硬膜外腔、黄韧带、硬膜下腔、硬膜
C.皮肤、皮下组织、黄韧带、棘上韧带、硬膜外腔、棘间韧带、硬膜
D.皮肤、皮下组织、棘上韧带和棘间韧带、硬膜外腔、黄韧带、硬膜
E.皮肤、皮下组织、棘间韧带、棘上韧带、硬膜、黄韧带、硬膜外腔
参考答案：A
| 阅读理解。 | |
Bike riding is a great way to get exercise and fresh air and share time as a family. But before your kids rush out and start biking, there's an important thing you need to consider -safety. Helmet (头盔)Basics Always wear a helmet when riding a bike, no matter where you are or how short the ride is. 1. ___. Here's why: Many bike accidents mean brain damage or death for someone who does not wear one while riding. To protect against brain injury, make sure your kids wear a correctly fitting helmet on every ride. Safe Clothing What kids wear when riding a bike is also very important for safety. Bright-colored clothes will help kids be visible on the road. Besides, 2. ____. Kids should never ride barefoot(赤脚)! Rules of the Road for Bike Riding Here are some must-know safety tips to teach kids: Stop at all stop signs and obey traffic lights just as cars do. Always stop and check for traffic in both directions when leaving a driveway. 3. ____. It's important to hear everyone else on the road. Making Safety a Family Activity One of the best ways to help kids learn safe bike riding is to set a good example by following the rules of the road yourself. 4. ______. It's also a great way to stay active as a family and spend valuable time with your kids! |