If A is a [img=32x20]1803c4e3bc9049f.png[/img] matrix and [img=133x21]1803c4e3c4a459d.png[/img], then A must be singular.

‏If A is a [img=40x20]1803c4e438d5e6e.png[/img] matrix and [img=141x21]1803c4e44127ce1.png[/img], then A must be singular.‎

If A is a 3×3 matrix and a1 +2a2 −a3 = 0, then A must be singular. A: 正确 B: 错误

How we pronounce the -ES /S ending of plural nouns depends on ______. A: the final letter of the word in the singular form. B: the final sound of the word in the singular form.

If A is a nonsingular [img=36x19]17de932d7252e24.png[/img] matrix, show that[img=35x23]17de932d800355c.png[/img] is ________ and det([img=35x23]17de932d8d1c265.png[/img])=_______. A: nonsingular >;0 B: nonsingular <;0 C: singular >;0 D: singular <;0

Du Fu’s early poems established his singular place in the history of literature.

Determiners are required before a singular noun but are optional when it comes to introducing plural nouns.

If A is a [img=40x20]180348ee73f28ea.png[/img] matrix , [img=124x21]180348ee7d54af8.png[/img], then A must be singular

The “never enough” problem can be ____ a singular early childhood event that perpetuated our need to be a people-pleaser.

This album is _____ as it was the only one ever signed by the president. A: odd B: unique C: common D: singular