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【简答题】
再次体液免疫应答发生的场所为________，各种免疫细胞的发源地为________，B淋巴细胞分化成熟的部位为________，T淋巴细胞分化的部位为________，成熟淋巴细胞定居的部位为________。
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皮皮学刷刷变学霸
举一反三
【简答题】估算。 304+4988 ≈ 4139 ÷48 ≈ 703 ×49 ≈ 6943-2150 ≈
【单选题】Variances:
A.
are quantitative expressions of action plans
B.
provide feedback by comparing results with plans and by highlighting deviations from plans
C.
are deviations from a plan
D.
ignore areas that are presumed to be running smoothly
【单选题】Activity-level variances plus flexible-budget variances equals:
A.
total master-budget variances
B.
total standard variances
C.
total actual variances
D.
None of these answers is correct.
【判断题】flexible budget allows us to isolate activity variances and revenue and spending variances.
A.
正确
B.
错误
【单选题】The test for the equality of two population variances is based on the
A.
ratio of the two sample variances
B.
difference between the two sample variances
C.
difference between the two population variances
D.
difference between the sample variances divided by the difference between the sample means
【单选题】The test for the equality of two population variances is based on:
A.
the difference between the two sample variances.
B.
the ratio of the two sample variances.
C.
the difference between the two population variances.
D.
the difference between the sample variances divided by the difference between the sample means.
【单选题】Rate variances are the same as ________ variances. Efficiency variances are the same as ________ variances.
A.
spending; effective
B.
activity; static
C.
usage; quantity
D.
price; quantity
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