左心室肥大的心电图诊断标准有()。 A: RV5+SV1≥4．0mV(男) B: RV5≥2．5mY C: RaVL＞1．2mY D: VATV1＞0．03s E: RaVR≥0．5mV

下列算式正确的是______。 A: Int(2.5)=3 B: Int(2.5)=2 C: Int(2.5)=2．5 D: Int(2.5)=0.5

My mother a doctor is my father so is A: My mother is a doctor. So is my father B: My mother is a doctor. So my father is C: My mother is a doctor. My father is so.

下列表达式运算结果为真的是（ ）。 A: int(2.5)=3 B: int(2.5)=2 C: int(2.5)=2.5 D: int(2.5)=0.5

Jack, a friend of ________, often comes to see us. A: my brother and my sister B: my brother’s and my sister C: my brother and my sister’s D: my brother’s and my sister’s

PM2.5是指颗粒物的直径为______ A: ＜2.5μm B: ＞2.5～＜10μm C: ＞2.5～＜5μm D: =2.5μm E: ≤2.5μm

I had supper with my _________that evening. A: my father B: my mother C: my brother D: my grandpa

以下哪个表达式的值等于3？ A: round(2.5) B: math.floor(2.5) C: math.ceil(2.5) D: decimal.Decimal("2.5")

以下表达式中,正确的是( ) A: K'(MY) = c(MY) / c(M)c(Y) B: K'(MY) = [MY] / [M][Y] C: K(MY) = [MY]/ [M][Y] D: K(MY) = [M][Y]/ [MY]

_____________, they speak English. A: In my belief B: For my belief C: On my belief D: To my relief