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【单选题】
如果抛物线y=-x 2 +2（m-1）x+m+1与x轴交于A、B两点，且A点在x轴正半轴上，B点在x轴的负半轴上，则m的取值范围应是 [ ]A.
m>1
B.
m>-1
C.
m
D.
m<1< /div>
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举一反三
【简答题】n. a group of birds, sheep or goats
【简答题】Translate into Chinese: sseparate the sheep from the goats
【单选题】Goats and sheep usually eat grass,but sometimes they also eat _____.
A.
leaf
B.
leaves
C.
leafs
D.
leaise
【单选题】Goats and sheep produce the following fiber products EXCEPT? ( )
A.
angora
B.
cashmere
C.
chamois
D.
mohair
【单选题】Goats and sheep live in the following area EXCEPT? ( )
A.
Australia and New Zealand
B.
The Antarctica Area
C.
The United States
D.
Argentina
【单选题】What kinds of goats or sheep have horns? ( )
A.
male goats
B.
male sheep
C.
all goats
D.
male goats and male sheep
【单选题】针对呼吸，心跳停搏所采用的初期心脏复苏措施包括：呼吸道畅通、人工呼吸、心脏按压。
心脏骤停早期诊断的最佳指标是（ ）
A.
听诊心音消失，心电图呈一直线
B.
测不到血压
C.
颈动脉和股动脉搏动消失
D.
面色苍白和口唇青紫
E.
惊厥
【单选题】Both sheep and goats provide a variety of products EXCEPT ( )
A.
milk and cheese
B.
meat
C.
wool
D.
Metal
【简答题】听录音，写数量。 1. cows _______________ 2. sheep _______________ 3. goats _______________ 4. horses _______________ 5. donkeys _______________
【简答题】听录音，写数量。 1. cows_________ 2. sheep _______ 3. goats _______ 4. horses_______ 5. donkeys _______
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