体外循环复温时的灌流温与深部组织间的温度差过大则有可能形成气泡,一般认为不宜超过()。
A.4℃
B.6℃
C.8℃
D.10℃
E.12℃
参考答案:D
In January, 2011, ____ leader of the Chinese Communist Party Hu Jintao was warmly received by Barak Obama, who was elected ____ president of the US two years ago.
A./; /
B.the; /
C.the; the
D./; the
太阳光通过玻璃后呈现蓝色,则玻璃是____ 颜色;一面旗子能反射红色光,则旗子是____ 颜色;一张纸几乎将所有的色光都反射,则纸是____ 颜色。