以下程序的输出结果是：
def test( b = 2, a = 4):
global z
z += a * b
return z
z = 10
print(z, test())
A、18NoneB
暂无解析
____,sheledalifeofcompleteseclusion.
Toobtainasatisfactoryresult，onemustapplytwo____ofpaintonacleansurface.
Manyartistspredictthatthisbrilliantyoungactor__tobeashinningstar.
患者男，40岁，2周来右侧咬物不适，冷水引起疼痛，近2日来夜间疼痛，影响睡眠，并引起半侧头痛，疼痛不能定位，检查右侧上、下磨牙面均有深的龋洞。对患牙的应急处理为
Duetothebadweathertheplanewas____fortwohours.
