Coronary heart disease happens without warning, even if the patient has passed a stress test.
查看答案
A stress test can observe if the patient has limited the blood flow in his heart.
A. 对
B. 错
What will a doctor suggest the patient to do if he find thatthe patient has limited the blood flow in his heart?
A. the doctor will suggest the patient to get angioplasty血管成形术
B. the doctor will suggest the patient to get stenting支架术.
C. the doctor will suggest the patient to get bypass surgery搭桥手术.
圆柱三视图中一个投影视图是圆，具有积聚性，另外两个是大小不等的矩形线框。
A. 对
B. 错
画圆柱三视图时，应先画出轴线和圆的中心线及投影为圆的那个视图，然后画其余两个视图。
A. 对
B. 错
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