可引起ST段下移0.07mV的疾病是()可引起ST段弓背向下抬高的疾病是()
A.急性心肌梗死
B.心绞痛
C.急性心包炎
D.主动脉夹层动脉瘤
E.室壁瘤
参考答案:B,C
(2013·吉林一中二模)Programs,________to join the old and the young together, are growing in popularity all over the world.
A.designed
B.to be designed
C.designing
D.having designed
强度等级为MU15的粉煤灰砖,其抗折强度单块值()。
A.≥2.6Mpa
B.≥3.5Mpa
C.≥4.6Mpa
D.≥5.5Mpa