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【单选题】
设集合L = {1, 2, 3, 4, 5},对于整除关系能够构成:

仅偏序集不是格;
仅格不是分配格;
仅分配格不是布尔代数;
布尔代数。
【单选题】
设集合L = {1, 2, 3, 6, 12},对于整除关系能够构成:

仅偏序集不是格;
仅格不是分配格;
仅分配格不是布尔代数;
布尔代数。
【单选题】
TG每升高1mmol/L,心血管死亡风险增加

13%
15%
18%
26%
33%
【单选题】
伸长率δ=(l-l0)/l0×100%,其中l为()。

试件的标距长度
试件的直径
试件的周长
试件拉断后的标距长度
【单选题】
Helen, if someone comes to see me this morning, ask him to leave a_____. ?

word ?
notice ?
message ?
mail ?
【判断题】
A: May I ask a question after class, Madam? B: Sure.

正确
错误
【判断题】
A: May I ask a question after class, Madam? B: Sure.

正确
错误
【单选题】
—Have you considered ____ your job as a teacher? —Yes. I like the job because a teacher is often considered a gardener.

?to change; to be
?to change; being
?changing; being
?changing; to be
【单选题】
What role does a teacher play in the following activity? The teacher writes one of five numbers (1-5) on a number of cards (the same number as the students). Each student draws one card. Those who have drawn number 1 will form group1, and those who have drawn number 2 will form group 2. Thus the students are put into five groups in a random way.

Controller
Assessor
Organizer
Prompter.
【单选题】
Should you jog too? If you do, be sure to ask your doctor for_________ .

advice
bench
distance
success