当窗宽为250,窗位为50时,其CT值显示范围为()
A.50~250HU
B.-75~175HU
C.-125~125HU
D.0~250HU
E.50~300HU
参考答案:B
.. Department of Homeland Security and CIA produced ______ joint report on Monday warning that ______ next 911 could in fact occur on ______ different date.
A.the; a; the
B.a; the; a
C./; the; the
D.a; /; the
用力压气球,气球会爆破;打足气的自行车车胎在阳光下曝晒也会爆破,生活中还有很多类似的现象,于是小红同学提出:质量一定的气体压强大小与哪些因素有关呢?请你 根据上述例子、生活经验和所学知识提出猜想。(至少写出两个)你的猜想:
(1)______________________________________________________;
(2)______________________________________________________。