[Answer] 6. What type of surgery involves widening a blood vessel?

Step 1 : Introduction to the question "6. What type of surgery involves widening a blood vessel?"

...1. dentaviolar surgery 2. blood surgery 3. angioplasty 4. plasma surgery The technique is mechanically widening a blood vessel that is narrow or blocked. This is done by putting tightly folded balloons into the small and not very wide parts. Then the balloons are inflated to a pre-determined size. The water pressure is the same as 6 to 20 Earth atmospheres.

[Answer] 4. A Wok is a cooking vessel with a unique feature. Although it may come in different sizes, it traditionally has what shape?

Step 1 : Introduction to the question "4. A Wok is a cooking vessel with a unique feature. Although it may come in different sizes, it traditionally has what shape?"

...1. Flat bottom 2. Round Bottom 3. Square bottom 4. Grill shape Although there are flat bottom woks, the round bottom is the traditional shape. It allows for the center of the wok to have a "hot spot" for quick cooking and stir frying.