当屋面坡度小于3%时,油毡宜平行于屋脊。当屋面坡度在3%~15%时,油毡宜()于屋脊。
A.平行
B.垂直
C.垂直或平行
参考答案:C
根据A句完成B句,使其意思相同或相近,每空填写一词。
1. A: How's the weather in Bazhong today?
B: ___________ the weather ___________ in Bazhong today?
2. A: My classmates and I hope we can visit Beijing for the Olympic Games this summer vacation.
B: My classmates and I hope ___________ Beijing for the Olympic Games this summer vacation.
3. A: Tom usually takes the bus to school.
B: Tom usually goes to school ___________.
4. A: Ann is 13 years old. Sally is 12 years old.
B: Sally isn't ___________ as Ann.
5. A: Mr Liu said to us, "I'll go to Chengdu next week".
B: Mr Liu told us ___________ go to Chengdu the next week.
下列关于腹膜后脂肪肉瘤,错误的是()
A.CT分为实体型、混合型和假囊肿型
B.实体型以吸纳为组织成分为主
C.假囊肿型为脂肪、纤维和黏液性组织共存
D.测不到脂肪密度可排除肉瘤
E.CT定性困难时,应做穿刺活检