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【单选题】
已知一条直线经过点A(3,1),且其方向向量是(-1,-2),则该直线方程式( )A.
2x-y-7=0
B.
2x-y-5=0
C.
x+2y-5=0
D.
x+2y-1=0
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反馈参考答案：
举一反三
【简答题】And clearly, people over age 75 who have other risk factors for cancer, such as a family history or prior personal experience with the disease, should continue to get screened regularly.
【简答题】一质点作直线运动,其加速度为 a=4+3t(SI) , 开始运动时 x=5m , v=0 ,求该质点在 t=10s 时的速度 为 m/s 。
【单选题】________ your age, sex, or family history is, the surest way to protect yourself is to avoid smoking or to quit smoking.
A.
Whatever
B.
Whether
C.
What
D.
Whichever
【单选题】某女,30岁,发现外阴部肿物5天,自觉外阴坠胀感。妇科检查:左侧大阴唇后部有一约6cm×6cm×5cm大小的囊性肿物,无压痛。最恰当的治疗为
A.
前庭大腺囊肿剥出术
B.
前庭大腺囊肿造口术
C.
全身应用抗生素
D.
高锰酸钾坐浴
E.
针刺吸出囊液
【单选题】And clearly, people over age 75 who have other risk factors for cancer, such as a family history or prior personal experience with the disease, should continue to get screened regularly.
A.
people over age 75 should continue to get screened regularly.
B.
people over age 75 should continue to get screened .
C.
people should continue to get screened regularly.
【简答题】对流干燥器是热气体以 的方式与直接接触的物料间发生 、 作用而进行干燥的设备。
【简答题】以人体气血分阴阳,则气为______,血为 _______。
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